The story
- Proto-Indo-European*per-
- Proto-Indo-European*preh₂-
- Proto-Hellenic*pərai
- Ancient Greekπᾰρᾰ́ (părắ)
- Ancient Greekπᾰρᾰ- (pără-)
- Proto-Indo-European*h₁én
- Ancient Greekἐν (en)
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰédʰeh₁ti
- Ancient Greekτῐ́θημῐ (tĭ́thēmĭ)
- Ancient Greekπᾰρεντῐ́θημῐ (părentĭ́thēmĭ)
- Koine Greekπᾰρένθεσῐς (părénthesĭs)
- Late Latinparenthesi
- Englishparenthesis
- English todayparenthesize
From parenthesis + -ize.
Etymology from Wiktionary, CC BY-SA 4.0.