Where does “heterophilia” come from?

heterophilia (English) comes from English hetero, from English heterosexual, from English -sexual, from English sexual, from Latin sexuālis, from Latin sexus, from Proto-Italic seksus, from Proto-Indo-European séksus — to cut, cut off, sever.

heterophilia (English): Ability to react immunologically with material...

Definitions

  1. Ability to react immunologically with material...

Ancestry of “heterophilia”, step by step

heterophilia traces back through two separate lines of ancestry.

via English hetero

StepLanguageWordMeaning
1EnglishheteroHeterosexual: of, pertaining to, or being a...
2EnglishheterosexualSexually attracted to members of the opposite...
3English-sexualForms a noun or adjective describing a state or...
4EnglishsexualArising from the fact of being male or female;...
5Latinsexuālissexual
6Latinsexusdivision; sex; gender
7Proto-Italicseksus
8Proto-Indo-Europeanséksus
9Proto-Indo-Europeansek-to cut, cut off, sever

via English philia

StepLanguageWordMeaning
1Englishphiliafriendship; liking; a psychological disorder...
2Ancient Greekφιλίαfriendship, love, affection, fondness;...
3Ancient GreekἉρμονίαHarmonia
4Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
5Proto-Indo-European-íh₂
6Proto-Indo-European-h₂Creates collective nouns, which refer to groups...
Every word from Proto-Indo-European sek-Every word from Proto-Indo-European séksusEvery word from Proto-Italic seksus