Paramour — Defs

01 n. 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 possessin…

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.]

02 adv. By or with love, esp. the love of the sexes; -- sometimes written as two words.

1.
By or with love, esp. the love of the sexes; -- sometimes written as two words.[Obs.]
“For par amour, I loved her first ere thou.” — Chaucer.