Where does “oneliness” come from?

oneliness (English) comes from English onely, from English only, from Middle English oonly, from Old English ānlīċ, from Old English ān, from Proto-West Germanic ain, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.

oneliness (English): The state of being one or single

Definitions

  1. The state of being one or single

Ancestry of “oneliness”, step by step

oneliness traces back through two separate lines of ancestry.

via English onely

StepLanguageWordMeaning
1EnglishonelyObsolete spelling of only
2EnglishonlyAlone in a category; Singularly superior; the...
3Middle Englishoonlyalone, apart; only, sole, unique; peerless,...
4Old Englishānlīċonly
5Old Englishānlonely; entirely alone, solitary, single; one
6Proto-West Germanicainone
7Proto-Germanicainazone; some
8Proto-Indo-Europeanóynosone; single

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 Proto-Indo-European óynos