philander (v.) Look up philander at Dictionary.com
1737, from the noun meaning "a lover" (1700), from Philander, popular name for a lover in stories, drama, and poetry, from Greek adjective philandros "with love for people," perhaps mistaken as meaning "a loving man," from phil- "loving" (see philo-) + andr-, stem of aner "man" (see anthropo-). Related: Philandered; philandering.