Where does “unprobable” come from?

unprobable (English) comes from English probable, from Middle English probable, from Old French probable, from Latin probābilis, from Latin probāre, from Latin probō, from Latin Probus, from Proto-Indo-European pro-bhwo- — passed , crossed.

unprobable (English): unlikely

Definitions

  1. unlikely

Ancestry of “unprobable”, step by step

unprobable traces back through two separate lines of ancestry.

via English probable

StepLanguageWordMeaning
1EnglishprobableLikely or most likely to be true; Likely to...
2Middle Englishprobable
3Old Frenchprobable
4Latinprobābilislikely, credible, probable, plausible
5Latinprobāre
6Latinprobōto approve, permit, commend
7LatinProbusgood, serviceable, excellent, superior, able
8Proto-Indo-Europeanpro-bhwo-being in front, prominent
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed

via English un

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