Where does “nonefficacy” come from?

nonefficacy (English) comes from English efficacy, from Old French efficace, from Latin efficacia, from Latin efficāx, from Latin efficiō, from Latin ex, from Latin commūnicō, from Latin commūnis — whale, sea monster; abyss.

nonefficacy (English): Absence of efficacy

Definitions

  1. Absence of efficacy

Ancestry of “nonefficacy”, step by step

nonefficacy traces back through two separate lines of ancestry.

via English efficacy

StepLanguageWordMeaning
1EnglishefficacyAbility to produce a desired effect under ideal...
2Old Frenchefficace
3Latinefficaciaefficacy, effectiveness, efficiency; virtue;...
4Latinefficāxefficacious, effectual, powerful, efficient
5Latinefficiōto make out or work out; effect, execute, complete, accomplish, make, form, compose
6LatinexA name of the letter "X"; out of, from
7Latincommūnicōto impart, share
8Latincommūniscommon, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
9Old Latincom(m)oinis
10Proto-Italickommoiniscommon
11Proto-Indo-Europeanḱom-moy-ni-held in common
12Proto-Indo-Europeanḱómbeside, near, by, with
13Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
14Middle Englishkyt
15Russianкитwhale; genitive plural of ки́та
16Old Church Slavonicкитъwhale
17Ancient Greekκῆτοςwhale, sea monster; abyss

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 Ancient Greek κῆτοςEvery word from Old Church Slavonic китъEvery word from Russian кит