Where does “unfavourability” come from?

unfavourability (English) comes from English favourability, from English favourable, from Old French favorable, from Latin favorabilis, from Latin favor, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs — Creates action nouns or result nouns from verbs;...

unfavourability (English): Alternative form of unfavorability

Definitions

  1. Alternative form of unfavorability

Ancestry of “unfavourability”, step by step

unfavourability traces back through two separate lines of ancestry.

via English favourability

StepLanguageWordMeaning
1EnglishfavourabilityAlternative spelling of favorability
2EnglishfavourablePleasing, encouraging or approving; Useful or...
3Old Frenchfavorable
4Latinfavorabilisfavored, popular
5Latinfavorgood will, inclination, partiality, favor;...
6Latin-orused to form a third-declension masculine...
7Proto-Italic-ōsCreates masculine action nouns or result nouns...
8Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
9Proto-Indo-European-oss
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -os