Where does “non-event” come from?

non-event (English) comes from English event, from Middle French event, from Latin ēventus, from Latin ēveniō, from Latin ex, from Latin commūnicō, from Latin commūnis, from Old Latin com(m)oinis — resin.

non-event (English): A situation which, contrary to expectation,...

Definitions

  1. A situation which, contrary to expectation,...

Ancestry of “non-event”, step by step

non-event traces back through two separate lines of ancestry.

via English event

StepLanguageWordMeaning
1EnglisheventAn occurrence; something that happens; A...
2Middle Frenchevent
3Latinēventusevent, occurrence, reality
4Latinēveniōto happen, occur
5LatinexA name of the letter "X"; out of, from
6Latincommūnicōto impart, share
7Latincommūniscommon, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
8Old Latincom(m)oinis
9Proto-Italickommoiniscommon
10Proto-Indo-Europeanḱom-moy-ni-held in common
11Proto-Indo-Europeanḱómbeside, near, by, with
12Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
13Middle Englishkyt
14Germankittputty certain kinds of cement used for fixing e.g. window panes
15Old High Germankuti
16Proto-West Germanickwidugum, resin
17Proto-Germanickweduzresin

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Germanic kweduzEvery word from Proto-West Germanic kwiduEvery word from Old High German kuti