Etymology

parenthesis

par·en·the·sis
P3A1R1E1N1T1H4E1S1I1S1

Today it means: A clause, phrase, or word which is inserted into a grammatically complete passage of text for explanation or as an aside, and usually marked off with brackets, commas, or dashes. Full definition →

Late Latin parenthesi ← Koine Greek πᾰρένθεσῐς (părénthesĭs) ← Ancient Greek πᾰρεντῐ́θημῐ (părentĭ́thēmĭ)
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The story

  1. Proto-Indo-European*per-
  2. Proto-Indo-European*preh₂-
  3. Proto-Hellenic*pərai
  4. Ancient Greekπᾰρᾰ́ (părắ)
  5. Ancient Greekπᾰρᾰ- (pără-)
  6. Proto-Indo-European*h₁én
  7. Ancient Greekἐν (en)
  8. Proto-Indo-European*dʰeh₁-
  9. Proto-Indo-European*dʰédʰeh₁ti
  10. Ancient Greekτῐ́θημῐ (tĭ́thēmĭ)
  11. Ancient Greekπᾰρεντῐ́θημῐ (părentĭ́thēmĭ)
  12. Koine Greekπᾰρένθεσῐς (părénthesĭs)
  13. Late Latinparenthesi
  14. English todayparenthesis

Learned borrowing from Late Latin parenthesis (“rhetorical device where an aside or example is included”), borrowed from Koine Greek πᾰρένθεσῐς (părénthesĭs, “insertion; putting in beside, injection; (grammar) parenthesis”), from Ancient Greek πᾰρεντῐ́θημῐ (părentĭ́thēmĭ) + -σις (-sis), from Ancient Greek πᾰρᾰ- (pără-, prefix meaning ‘beside’) (ultimately from Proto-Indo-European *preh₂- (“before, in front”) and/or from its etymon *per- (“before, in front”)) + ἐν (en, “at; in; on”) (from Proto-Indo-European *h₁én (“in”)) + θέσῐς (thésĭs, “arrangement, placement, setting”) (from τῐ́θημῐ (tĭ́thēmĭ, “to place, put, set”) (ultimate from Proto-Indo-European *dʰeh₁- (“to do; to place, put”)) + -σῐς (-sĭs, suffix forming abstract nouns or nouns of action, process, or result)), modelled after Koine Greek πᾰρεντῐ́θημῐ (părentĭ́thēmĭ, “to put in beside; to mix up”). The plural is also a learned borrowing from Late Latin parenthesēs.

Words from the same roots

Proto-Indo-European*preh₂- all →

forfirstprincipleprescientprecipitantaprimoratepresentative

Proto-Indo-European*h₁én all →

innerintuitintroitin-

Proto-Indo-European*dʰeh₁- all →

dofactfeaturethemethesissacrificedeemepithetdofffetialsudorificunwisdom

Etymology from Wiktionary, CC BY-SA 4.0.