LOGOS
POLITICAL
παραλληλία (ἡ)

ΠΑΡΑΛΛΗΛΙΑ

LEXARITHMOS 291

Parallelism, the concept of two or more elements coexisting or being compared while maintaining their distinctness, yet moving in the same direction or sharing common characteristics. From geometry to literature, its lexarithmos of 291 suggests harmonious coexistence and balance.

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Definition

According to the Liddell-Scott-Jones Lexicon, «παραλληλία» is the quality of being «παράλληλος», meaning to extend alongside something else without intersecting it. The word is a feminine noun, derived from the adjective «παράλληλος», and is primarily used to describe the relationship between lines, planes, or other geometric figures.

In classical Greek literature, «παραλληλία» finds its most systematic application in mathematical texts, with Euclid's «Elements» being a prime example, where the concept of parallel lines constitutes a fundamental axiom. Its geometric meaning is non-intersecting coexistence, regardless of their extension to infinity.

Beyond its strictly geometric use, «παραλληλία» was extended metaphorically to describe analogy, correspondence, or comparison between two or more persons, events, or situations. This metaphorical usage is evident in philological and historical works, where the juxtaposition of lives or events highlights common patterns or differences, as in Plutarch's «Parallel Lives».

Overall, «παραλληλία» embodies the idea of coexistence without conflict, similarity without identity, and analogy that allows for the comparison and understanding of complex relationships.

Etymology

παραλληλία ← παράλληλος + -ία ← παρά + ἀλλήλων (Ancient Greek root belonging to the oldest stratum of the language)
The word «παραλληλία» is derived from the adjective «παράλληλος» with the addition of the suffix -ία, which forms abstract nouns denoting a quality or state. The adjective «παράλληλος» is a compound, consisting of the preposition «παρά» (meaning "beside, near") and the root of the reciprocal pronoun «ἀλλήλων» (meaning "one another"). The etymology of the root «ἀλλήλων» traces back to ancient Greek forms denoting reciprocity, with no evidence of borrowing from other languages.

The family of «παραλληλία» includes words that develop the concept of side-by-side coexistence and comparison. From the verb «παραλληλίζω», which describes the act of comparing, to the noun «παραλληλισμός», which denotes the result, all cognate words retain the core of the «παρά + ἀλλήλων» relationship.

Main Meanings

  1. Geometric Property — The quality of lines, planes, or other figures that extend side-by-side without ever intersecting, however far they are extended. A fundamental concept in Euclidean geometry.
  2. Analogy, Correspondence — The relationship of similarity or correspondence between two or more persons, events, ideas, or situations, which allows for comparison.
  3. Comparison, Juxtaposition — The act of comparing two similar elements or lives, with the aim of highlighting common characteristics or differences, as in Plutarch's «Parallel Lives».
  4. Simultaneous Development — The simultaneous or synchronized course and evolution of two or more phenomena, processes, or historical events, without direct interaction.
  5. Structural Similarity — The similarity in structure, arrangement, or function between different systems or organisms (e.g., "parallelism of organs").
  6. Rhetorical Figure — In rhetoric and literature, the use of similar grammatical structures or ideas in successive phrases or clauses for emphasis or rhythm.

Word Family

παρά + ἀλλήλ- (a combination of the preposition παρά and the root of ἀλλήλων, meaning "one another")

This root is formed from the preposition «παρά» ("beside, near") and the root of the reciprocal pronoun «ἀλλήλων» ("one another"). Their combination creates the concept of a "parallel" relationship, where two or more elements lie side-by-side, maintaining their individuality but often sharing a common path or characteristics. From geometry to philology, this word family describes relationships of non-intersecting coexistence and comparison.

παράλληλος adjective · lex. 550
The adjective from which «παραλληλία» is derived. It means "lying alongside without intersecting". Widely used in geometry by Euclid to describe lines or planes.
ἀλλήλων pronoun · lex. 949
The reciprocal pronoun that forms the second component of the root. It means "one another" and expresses reciprocity or the relationship between two or more entities, fundamental to the concept of a "parallel" relationship.
παραλληλίζω verb · lex. 1097
The verb meaning "to place parallel, to compare, to juxtapose". Often used in philological and historical texts for the act of comparison, as in Plutarch's «Parallel Lives».
παραλληλισμός ὁ · noun · lex. 800
The noun denoting the act or result of «παραλληλίζειν», i.e., comparison, analogy, or correspondence. Also, a rhetorical figure characterized by the repetition of similar structures.
παράλληλον τό · noun · lex. 450
The neuter form of the adjective «παράλληλος» used as a noun, referring to a parallel line, a parallel figure, or even a comparison.
παραλληλόγραμμον τό · noun · lex. 684
A more specialized geometric term, referring to a quadrilateral with opposite sides parallel. It is a direct application of the concept of parallelism.
παραλληλότης ἡ · noun · lex. 858
A noun denoting the quality or state of being parallel, functioning as a synonym for «παραλληλία» in certain contexts, emphasizing the nature of the relationship.

Philosophical Journey

The trajectory of «παραλληλία» in the ancient Greek world begins with geometry and extends to philological and philosophical applications, showcasing the Greek language's ability to transform abstract concepts.

5th-4th C. BCE
Pre-Euclidean Geometry
The concept of «παράλληλος» (as an adjective) appears in philosophers like Plato and Aristotle, primarily in geometric contexts, describing non-intersecting lines.
3rd C. BCE
Euclid, «Elements»
Euclid establishes the concept of parallel lines as a fundamental axiom (the 5th postulate) of his geometry, giving «παραλληλία» its central scientific meaning.
1st-2nd C. CE
Plutarch, «Parallel Lives»
Plutarch uses the idea of «παραλληλία» metaphorically, comparing the lives of prominent Greeks and Romans, broadening the concept's use into historical and ethical contexts.
BYZANTINE PERIOD
Continuation and Commentary
«Παραλληλία» continues to be used in both geometric texts and philological commentaries, maintaining its dual dimension as a scientific and comparative term.
MODERN GREEK ERA
Expansion of Meanings
In Modern Greek, «παραλληλία» retains its ancient meanings and expands into contemporary fields such as psychology, sociology, and computer science, describing simultaneous processes or structural similarities.

In Ancient Texts

«Παραλληλία» as a concept finds its most emblematic expression in two key areas of ancient literature: geometry and biography.

«Καὶ ἐὰν εἰς δύο εὐθείας εὐθεῖα ἐμπίπτουσα τὰς ἐντὸς καὶ ἐπὶ τὰ αὐτὰ μέρη γωνίας δύο ὀρθῶν ἐλάσσονας ποιῇ, αἱ δύο εὐθεῖαι ἐκβαλλόμεναι εἰς ἄπειρον συμπίπτουσιν, ἐφ’ ἃ μέρη εἰσὶν αἱ τῶν δύο ὀρθῶν ἐλάσσονες γωνίαι.»
And if a straight line falling on two straight lines makes the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than two right angles.
Euclid, Elements, Book I, Postulate 5
«...ἐπεὶ δὲ τοὺς βίους γράφειν προῄρημαι, οὐχ ἱστορίας ἀλλὰ βίους, οὐδὲ τὰ πάνυ λαμπρὰ τῶν ἔργων ἀλλὰ τὰ μικρὰ καὶ τὰ ἥττονα, δι’ ὧν μᾶλλον ἡ τῶν ἠθῶν φανερὰ γίνεται παράλληλος.»
...since I have undertaken to write lives, not histories, and not the most brilliant deeds but the small and lesser ones, through which the parallel nature of characters becomes more evident.
Plutarch, Parallel Lives, "Alexander and Caesar", 1.2

Lexarithmic Analysis

The lexarithmos of the word ΠΑΡΑΛΛΗΛΙΑ is 291, from the sum of its letter values:

Π = 80
Pi
Α = 1
Alpha
Ρ = 100
Rho
Α = 1
Alpha
Λ = 30
Lambda
Λ = 30
Lambda
Η = 8
Eta
Λ = 30
Lambda
Ι = 10
Iota
Α = 1
Alpha
= 291
Total
80 + 1 + 100 + 1 + 30 + 30 + 8 + 30 + 10 + 1 = 291

291 decomposes into 200 (hundreds) + 90 (tens) + 1 (units).

The 18 Methods

Applying the 18 traditional lexarithmic methods to the word ΠΑΡΑΛΛΗΛΙΑ:

MethodResultMeaning
Isopsephy291Base lexarithmos
Decade Numerology32+9+1=12 → 1+2=3 — Triad, the number of completeness and balance, suggesting the harmonious coexistence of parallels.
Letter Count1010 letters — Decad, the number of perfection and completion, reflecting the full description of a relationship.
Cumulative1/90/200Units 1 · Tens 90 · Hundreds 200
Odd/EvenOddMasculine force
Left/Right HandRightDivine (≥100)
QuotientComparative method
NotarikonΠ-Α-Ρ-Α-Λ-Λ-Η-Λ-Ι-ΑPerpetual Harmonious Flow of Logical Ethical Solutions of Impartial Truth (Πάντα Αρμονική Ροή Αλληλεπίδρασης Λογικής Ηθικής Λύσεων Ισορροπίας Αλήθειας).
Grammatical Groups5V · 5C5 vowels (Α, Α, Η, Ι, Α) and 5 consonants (Π, Ρ, Λ, Λ, Λ), highlighting the balance in the word's structure.
PalindromesNo
OnomancyComparative
Sphere of DemocritusDivination with lunar day
Zodiacal IsopsephyMars ♂ / Cancer ♋291 mod 7 = 4 · 291 mod 12 = 3

Isopsephic Words (291)

Words from the Liddell-Scott-Jones Lexicon with the same lexarithmos (291) as «παραλληλία», but of different roots, offer interesting connections and contrasts.

παῖς
The word for "child", a fundamental term for human existence and development, contrasted with the abstract and geometric concept of parallelism, bringing a human dimension.
ἄκος
The word for "remedy, cure", which brings the idea of solution or restoration. Its isopsephy with «παραλληλία» might suggest the search for balance or solutions in parallel situations.
προλαβή
The word for "preconception, anticipation", an epistemological concept that can relate to the prediction or recognition of parallels in events or ideas, before their full manifestation.
ἐκγενής
The word for "born from, descendant", indicating origin and continuity. Its connection to «παραλληλία» might refer to parallel genealogical lines or developments.
θαλαμίς
The word for "couch, bridal chamber", a term that carries the meaning of proximity and coexistence, much like parallelism, but in a much more personal and intimate context.

The LSJ lexicon contains a total of 53 words with lexarithmos 291. For the full catalog and AI semantic filtering, see the interactive tool.

Sources & Bibliography

  • Liddell, H. G., Scott, R., Jones, H. S.A Greek-English Lexicon. Oxford: Clarendon Press, 1940.
  • EuclidElements. Edited by Heiberg, J. L., Leipzig: Teubner, 1883-1888.
  • PlutarchParallel Lives. Loeb Classical Library, Harvard University Press.
  • Smyth, H. W.Greek Grammar. Cambridge, MA: Harvard University Press, 1956.
  • Chantraine, P.Dictionnaire étymologique de la langue grecque. Paris: Klincksieck, 1968-1980.
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