Where does “infestment” come from?

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

Ancestry of “infestment”, step by step

infestment traces back through two separate lines of ancestry.

via English infest

StepLanguageWordMeaning
1EnglishinfestTo inhabit a place in unpleasantly large numbers;...
2Middle Englishinfesten
3Old Frenchinfesterto infest
4Latinīnfestōto vex repeatedly, trouble, harass, molest also used of adverse physical effects, circumstances, Fortune
5Latininfestusunsafe, dangerous; hostile, aggressive;...
6Latininfendostrike
7LatinfendoI hit; I thrust
8Proto-Indo-Europeangʷʰen-to strike, slay, kill
9Proto-Indo-Europeanbʰon-

via English ment

StepLanguageWordMeaning
1Englishmentsimple past tense and past participle of meng;...
2Korean멘트
Every word from Proto-Indo-European bʰon-Every word from Proto-Indo-European gʷʰen-Every word from Latin fendo