Where does “vouchable” come from?

vouchable (English) comes from English vouch, from Middle English vouchen, from Old French vochier, from Vulgar Latin *vocico, from Latin vocō, from Latin vōx, from Proto-Italic wōks, from Proto-Indo-European wṓkʷs — to speak, to sound out.

vouchable (English): Able to be vouched

Definitions

  1. Able to be vouched

Ancestry of “vouchable”, step by step

vouchable traces back through two separate lines of ancestry.

via English vouch

StepLanguageWordMeaning
1EnglishvouchTo take responsibility for; to express confidence...
2Middle Englishvouchen
3Old Frenchvochierto call; to summon; to claim; to denounce
4Vulgar Latin*vocico
5Latinvocōto call, summon, beckon (with one's voice)
6Latinvōxvoice
7Proto-Italicwōksvoice
8Proto-Indo-Europeanwṓkʷsvoice, speech
9Proto-Indo-Europeanwekʷ-to speak, to sound out

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
Every word from Proto-Indo-European wekʷ-