Where does “oist” come from?

oist (Middle English) comes from Old French hoiste, from Latin hostia, from Proto-Indo-European ǵʰostiyo-, from Proto-Indo-European ǵʰes- — hand; take, give in exchange.

Ancestry of “oist”, step by step

StepLanguageWordMeaning
1Old Frenchhoiste—
2Latinhostiasacrifice, offering; victim, sacrificial animal
3Proto-Indo-Europeanǵʰostiyo-—
4Proto-Indo-Europeanǵʰes-hand; take, give in exchange
Every word from Proto-Indo-European ǵʰes- →Every word from Proto-Indo-European ǵʰostiyo- →Every word from Latin hostia →