עֶרְוַ֨ת בַּת־אֵ֤שֶׁת אָבִ֙יךָ֙ מוֹלֶ֣דֶת אָבִ֔יךָ אֲחוֹתְךָ֖ הִ֑וא לֹ֥א תְגַלֶּ֖ה עֶרְוָתָֽהּ׃ (ס)
네 계모가 네 아비에게 낳은 딸은 네 누이니 너는 그 하체를 범치 말지니라
Targum Jonathan on Leviticus
The nakedness of thy father's wife's daughter, who hath been begotten of thy father, she is thy sister, thou shalt not dishonour.