Where does “anti-heterosexual” come from?

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

anti-heterosexual (English): Synonym of heterophobic; Synonym of heterophobe

Definitions

  1. Synonym of heterophobic; Synonym of heterophobe

Ancestry of “anti-heterosexual”, step by step

anti-heterosexual traces back through two separate lines of ancestry.

via English heterosexual

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

via English anti

StepLanguageWordMeaning
1EnglishantiOpposed to something; That has a torsion angle...
2Englishanti-Against, hostile to; Contrasting with the norm;...
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite
Every word from Proto-Indo-European sek-Every word from Proto-Indo-European séksusEvery word from Proto-Italic seksus