Definition of wittol in US English:

wittol

noun

archaic
  • A man who is aware and tolerant of his wife's infidelity; an acquiescent cuckold.

    • ‘Galafro, King of Spain, persuaded by the words of a chiromantist, who affirmed that his wife would make a wittol of him, builds a tower in which to keep his wife, but she is in the end cozened and enjoyed by Galeotto, the son of Diego, King of Castile.’
    • ‘Additionally, Cleopatra brought ruin to Caesar and, later, Mark Anthony, probably making wittols of them both.’

Origin

Late Middle English: apparently from wit + the last syllable (with the loss of -d) of cuckold.

Pronunciation

wittol

/ˈwɪdl//ˈwidl/