Definify.com
Webster 1913 Edition
Paramour
1.
A lover, of either sex; a wooer or a mistress (formerly in a good sense, now only in a bad one); one who takes the place, without possessing the rights, of a husband or wife; – used of a man or a woman.
The seducer appeared with dauntless front, accompanied by his
paramour
Macaulay.
2.
Love; gallantry.
[Obs.]
“For paramour and jollity.” Chaucer.
Webster 1828 Edition
Paramour
PAR'AMOUR
,Noun.
1.
A lover; a wooer.2.
A mistress.