From ث د ي (ṯ d y), from Proto-Semitic *ṯdʾ (“breast, pap, teat, mammary”). Cognate with Hebrew שָׁד (šad, “breast”) and Aramaic תַּדָּא (“breast”).
Axaftin û jiberkirina " ثدي " û gelek peyv û hevokên din di Arabic .