paramour
noun
[ ˈparəmʊə ]
• a lover, especially the illicit partner of a married person.
Similar:
lover,
beloved,
significant other,
mistress,
girlfriend,
kept woman,
other woman,
inamorata,
boyfriend,
other man,
inamorato,
gigolo,
sugar daddy,
bit on the side,
toy boy,
fancy man,
fancy woman,
hetaera,
odalisque,
concubine,
doxy,
leman,
courtesan,
cicisbeo,
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.
