The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*ten-
- Proto-Indo-European*tend-
- Proto-Indo-European*téndeti
- Proto-Italic*tendō
- Latintendō
- Latincontendō
- Latincontentiō
- Proto-Indo-European*h₃ed-
- Proto-Indo-European*h₃édosder.?
- Latincontentiōsus
- Middle Frenchcontentieux
- English todaycontentious
From Middle French contentieux, from Latin contentiōsus (“quarrelsome, perverse”), from contentiō (“contention”), from contendere, past participle contentus (“to contend”). Equivalent to English contention + -ous.
Etymology from Wiktionary, CC BY-SA 4.0.