Where does “trenchant” come from?

Trenchant comes from Old French trenchant, from Old French trenchier, from Vulgar Latin trinicare, from Latin trini, from Latin tres, meaning three, ultimately from Proto-Indo-European tréyes.

trenchant (English): Fitted to trench or cut; gutting; sharp; Keen;...

Definitions

  1. Fitted to trench or cut; gutting; sharp; Keen;...

Ancestry of “trenchant”, step by step

StepLanguageWordMeaning
1Old Frenchtrenchantsharp; razor sharp; present participle of...
2Old Frenchtrenchierto cut
3Vulgar Latintrinicarecut into three parts; cut in three parts
4Latintrininominative masculine plural of trīnus; genitive...
5Latintresthree; 3
6EnglishthreeA numerical value after two and before four....
7Middle Englishthrethree
8Old Englishþrīthree
9Proto-West Germanicþrīʀthree
10Proto-Germanicþrīzthree
11Proto-Indo-European*tréyes

Words derived from “trenchant

Every word from Proto-Indo-European *tréyesEvery word from Proto-Germanic þrīzEvery word from Proto-West Germanic þrīʀ