Main Entry: phi·lan·der

Pronunciation: \fə-ˈlan-dər\

Function: intransitive verb

Inflected Form(s): phi·lan·dered; phi·lan·der·ing \-d(ə-)riŋ\

Etymology: from obsolete philander lover, philanderer, probably from the name Philander

Date: 1737

of a man : to have casual or illicit sex with a woman or with many women; especially : to be sexually unfaithful to one's wife

— phi·lan·der·er \-dər-ər\ noun