Where does “retrench” come from?

Retrench comes from Old French re- combined with English three, ultimately deriving from Proto-Indo-European tréyes meaning three.

retrench (English): To cut down or reduce; To confine; to limit; to...

Definitions

  1. To cut down or reduce; To confine; to limit; to...

Ancestry of “retrench”, step by step

retrench traces back through two separate lines of ancestry.

via English trench

StepLanguageWordMeaning
1EnglishtrenchA long, narrow ditch or hole dug in the ground; A...
2Old Frenchtrenchetrench; first-person singular present indicative...
3Old Frenchtrenchierto cut
4Vulgar Latintrinicarecut into three parts; cut in three parts
5Latintrininominative masculine plural of trīnus; genitive...
6Latintresthree; 3
7EnglishthreeA numerical value after two and before four....
8Middle Englishthrethree
9Old Englishþrīthree
10Proto-West Germanicþrīʀthree
11Proto-Germanicþrīzthree
12Proto-Indo-European*tréyes

via Old French retranchier

StepLanguageWordMeaning
1Old Frenchretranchierto get rid of; to remove
2Old FrenchtranchierAlternative form of trenchier
3Latintruncāre
4Latintruncuslopped, docked; maimed, mangled, mutilated; A...
5Proto-Indo-Europeantwerḱ-to carve, cut off, trim

Words derived from “retrench

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