The story
- Proto-Indo-European*sem-
- Proto-Indo-European*sḿ̥teros
- Proto-Hellenic*hə́teros
- Ancient Greekἕτερος (héteros)
- Englishhetero-
- Latinnorma
- Englishnormative
- English todayheteronormative
From hetero- + normative. The word was popularized by the American social theorist Michael Warner (born 1958) in a 1991 journal article: see the quotation.
Etymology from Wiktionary, CC BY-SA 4.0.