Where does “harem ending” come from?

harem ending (English) comes from English ending, from Middle English ending, from Middle English endyng, from Old English endung, from Old English endian, from Proto-Germanic andijōną, from Proto-Germanic andijaz, from Proto-Indo-European h₂entíos — on, onto.

harem ending (English): The ending of a hentai or pornhwa in which the protagonist ends up partnered with all or several of the potential love interests encountered in the story

Definitions

  1. The ending of a hentai or pornhwa in which the protagonist ends up partnered with all or several of the potential love interests encountered in the story

Ancestry of “harem ending”, step by step

harem ending traces back through two separate lines of ancestry.

via English ending

StepLanguageWordMeaning
1EnglishendingA termination or conclusion; The last part of...
2Middle EnglishendingAlternative form of endyng
3Middle EnglishendyngAn ending, termination, or conclusion;...
4Old Englishendungending
5Old Englishendianto end, make an end of; to finish, complete; to...
6Proto-Germanicandijōnąto end, bring to an end, finish
7Proto-Germanicandijazend
8Proto-Indo-Europeanh₂entíosfront; forehead
9Proto-Indo-Europeanh₂ent-face; forehead; front
10Proto-Indo-Europeanh₂en-on, onto

via English harem

StepLanguageWordMeaning
1EnglishharemThe private part of an Arab household,...
2Turkishharemharem
3Ottoman Turkishحرمharem
4Arabicحَرَمsomething prohibited; sanctuary, women;...
Every word from Proto-Indo-European h₂en-Every word from Proto-Indo-European h₂ent-Every word from Proto-Indo-European h₂entíos