The story
- Ancient Greek · derived fromπαρένθετος
- Late Latin · derived fromparenthesis
- Medieval Latin · derived fromparentheticus
- English todayparenthetical
From Medieval Latin parentheticus (from Late Latin parenthesis or Ancient Greek παρένθετος (parénthetos), + -icus) + -al. By surface analysis, par- + en- + thetical.
Etymology from Wiktionary, CC BY-SA 4.0.