Where does “donkeyfucker” come from?

donkeyfucker (English) comes from English fucker, from English -er, from Middle English -er, from Old French -er, from Latin -āre, from Proto-Italic -āō, from Proto-Indo-European -eh₂yéti, from Proto-Indo-European -yéti — he, she.

Ancestry of “donkeyfucker”, step by step

donkeyfucker traces back through two separate lines of ancestry.

via English fucker

StepLanguageWordMeaning
1EnglishfuckerAn undesirable person; The object of some effort;...
2English-erA person or thing that does an action indicated...
3Middle English-eragentive suffix; agent noun suffix
4Old French-erAlternative form of -ier, verbal suffix;...
5Latin-ārefirst conjugation
6Proto-Italic-āōForms primarily denominative verbs
7Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via English donkey

StepLanguageWordMeaning
1Englishdonkeya domestic animal, Equus asinus asinus, similar...
2Middle Englishdonekiea miniature dun horse
3Middle EnglishdonTo do, perform; To complete, finish; To make,...
4Old Englishdōnto do
5Proto-West Germanicdōnto do; to put, to place
6Proto-Germanicdōnąto do, make; to put, place
7Proto-Indo-Europeandʰéh₁tto put, to place; to do
8Proto-Indo-Europeandʰeh₁-to do, put, place
Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti