Where does “accoster” come from?

accoster (Old French) comes from Vulgar Latin accosto, from Latin ad, from Proto-Italic ad, from Proto-Indo-European h₂éd — to, at.

Ancestry of “accoster”, step by step

StepLanguageWordMeaning
1Vulgar Latinaccostoto come alongside someone
2Latinadtoward, to; up to; near, by, close by, at, to
3Proto-Italicadtoward, to, on, up to, for
4Proto-Indo-Europeanh₂édto, at

Words derived from “accoster

Every word from Proto-Indo-European h₂édEvery word from Proto-Italic adEvery word from Latin ad