paramour
/ˈparəmʊə
/noun archaic
A lover, especially the illicit partner of a married person.Is it too much to have these characters actually act like fathers and daughters, and not just like rich, sleazy sugar daddies with their young, illicit paramours tagging along for the ride?...
- He informed her that her paramour was already married and as per the Shariah rules he can have another wife only if he can do justice to his first wife.
- Alas, when the desired moment of assignation arrives, his beloved paramour is not to be found, and another girl offers to fill her place.
Origin
Middle English: from Old French par amour 'by love'; in English the phrase was written from an early date as one word and came to be treated as a noun.