Where does “usable” come from?

usable (Old French) comes from Old French user, from Latin usare, from Latin utī — how.

Ancestry of “usable”, step by step

StepLanguageWordMeaning
1Old Frenchuserto use; to employ; to make use of
2Latinusarepresent active infinitive of *ūsō
3Latinutīhow

Words derived from “usable

Every word from Latin utīEvery word from Latin usareEvery word from Old French user