Where does “retrenchement” come from?

retrenchement (Middle French) comes from Middle French retrancher, from Old French tranchier, from Latin truncāre, from Latin truncus, from Proto-Indo-European twerḱ- — to carve, cut off, trim.

Ancestry of “retrenchement”, step by step

retrenchement traces back through two separate lines of ancestry.

via Middle French retrancher

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

via Middle French retranchier

StepLanguageWordMeaning
1Middle Frenchretranchierto get rid of, remove completely; to remove a...
Every word from Proto-Indo-European twerḱ-