Where does “impugnable” come from?

impugnable (English) comes from English impugn, from Middle French impugner, from Latin impugnō, from Latin im-, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en — in.

impugnable (English): That can be impugned; open to attack, open to...

Definitions

  1. That can be impugned; open to attack, open to...

Ancestry of “impugnable”, step by step

impugnable traces back through two separate lines of ancestry.

via English impugn

StepLanguageWordMeaning
1EnglishimpugnTo assault, attack; To verbally assault,...
2Middle Frenchimpugnerto attack; to impugn
3Latinimpugnōto attack, fight against
4Latinim-Alternative form of in-; form of "in"; in
5Latinīn-un-, non-, not
6Latinînin, at, on, upon, from (space)
7Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
8Proto-Italicenin
9Proto-Indo-Europeanh₁énin

via English able

StepLanguageWordMeaning
1EnglishableEasy to use; Suitable; competent; Liable to
2Middle Englishablecapable, expert, qualified, skilful, competent
3Old Frenchableable; capable
4Latinhabilisable to have/possess/maintain; having sufficient...
5Latin-ilis-ile
6Proto-Italic-elis
7Proto-Indo-European-elis
8Proto-Indo-European-lósForms agent nouns from verbal roots

Words derived from “impugnable

Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Proto-Italic en
impugnable — Etymology, Origin & Word History | Etymology Explorer