ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: Middle English stepfader, from Old English stēopfæder (akin to Old Frisian stiapfeder, Middle High German stiefvater, Old Norse stjūpfathir ), from stēop- step- + fæder father — more at father
: the husband of one's mother by a subsequent marriage