step out on someone

in. to betray one’s lover by going out with someone else. Hank has been stepping out on Bess, and she doesn’t know it yet.

Name	Pronounced	Usage
Frens	FRENS	Limburgish
Webster	WEB-stər	English
Abigayle	AB-i-gayl	English (Modern)
Valora	vah-LO-rah	Esperanto
Baitson	['beitsn]
Eir	-	Norse Mythology, Icelandic, Norwegian