Where does “destrier” come from?

destrier (Old French) comes from Latin dextrarius, from Latin dexter, from Proto-Italic deksteros, from Proto-Indo-European deḱs(i)-tero-, from Proto-Indo-European deḱs- — right.

Ancestry of “destrier”, step by step

StepLanguageWordMeaning
1Latindextrarius
2Latindexterright (relative direction), right hand
3Proto-Italicdeksterosright side, direction
4Proto-Indo-Europeandeḱs(i)-tero-
5Proto-Indo-Europeandeḱs-right

Words derived from “destrier

Every word from Proto-Indo-European deḱs-Every word from Proto-Indo-European deḱs(i)-tero-Every word from Proto-Italic deksteros