noun
amour
uh-MOOR/əˈmʊr/
A romantic or sexual love affair.
The couple's private garden embrace reveals their tender amour.

Etymology
The ancestor meant love or affection, especially sexual love. English narrowed the word from love generally to a love affair, with an illicit affair becoming its primary sense.
In context
wild and lawless amours … of Berenike, daughter of the King of Egypt, and Mesopotamia, with whom she had a sexual affair.
no inclination to cross a lion in his amours … a sure sign that his master was courting