Where does “infesten” come from?

infesten (Middle English) comes from Old French infester, from Latin īnfestō, from Latin infestus, from Latin infendo, from Latin fendo, from Proto-Indo-European gʷʰen-, from Proto-Indo-European bʰon-.

Ancestry of “infesten”, step by step

StepLanguageWordMeaning
1Old Frenchinfesterto infest
2Latinīnfestōto vex repeatedly, trouble, harass, molest also used of adverse physical effects, circumstances, Fortune
3Latininfestusunsafe, dangerous; hostile, aggressive;...
4Latininfendostrike
5LatinfendoI hit; I thrust
6Proto-Indo-Europeangʷʰen-to strike, slay, kill
7Proto-Indo-Europeanbʰon-

Words derived from “infesten

Every word from Proto-Indo-European bʰon-Every word from Proto-Indo-European gʷʰen-Every word from Latin fendo
infesten — Etymology, Origin & Word History | Etymology Explorer