stepdaughter

From Middle English stepdoughter, stepdoghter, steopdohter, from Old English stēopdohtor (“stepdaughter”), from Proto-Germanic *steupaduhtēr (“stepdaughter”), equivalent to step- + daughter. Cognate with Saterland Frisian Stäifdochter (“stepdaughter”), West Frisian styfdochter (“stepdaughter”), Dutch stiefdochter (“stepdaughter”), German Low German Steevdochter (“stepdaughter”), German Stieftochter (“stepdaughter”), Danish steddatter (“stepdaughter”), Swedish styvdotter (“stepdaughter”), Icelandic stjúpdóttir (“stepdaughter”).

出典: Wiktionary「stepdaughter」（CC BY-SA 4.0）