Where does “festoyer” come from?

festoyer (Old French) comes from Old French fester, from Medieval Latin festare.

Ancestry of “festoyer”, step by step

StepLanguageWordMeaning
1Old Frenchfester—
2Medieval Latinfestare—
Every word from Medieval Latin festare →Every word from Old French fester →
festoyer — Etymology, Origin & Word History | Etymology Explorer