Where does “lesbianness” come from?

lesbianness (English) comes from English lesbian, from Latin Lesbius, from Ancient Greek Λέσβιος, from Ancient Greek Λέσβος, from Hittite 𒌷𒆷𒊍𒉺, from Akkadian 𒉺 — overseer; foreman; instructor.

lesbianness (English): Quality or condition of being lesbian

Definitions

  1. Quality or condition of being lesbian

Ancestry of “lesbianness”, step by step

lesbianness traces back through two separate lines of ancestry.

via English lesbian

StepLanguageWordMeaning
1EnglishlesbianHomosexual, gay; preferring mostly or exclusively...
2LatinLesbiusLesbian
3Ancient GreekΛέσβιοςLesbian
4Ancient GreekΛέσβοςLesbos
5Hittite𒌷𒆷𒊍𒉺Lesbos
6Akkadian𒉺overseer; foreman; instructor

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Akkadian 𒉺Every word from Hittite 𒌷𒆷𒊍𒉺Every word from Ancient Greek Λέσβος