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”).
Practica parlar i memoritzar " ثدي " i moltes altres paraules i frases a Arabic .