שְׁסֵי, Pa. שַׁסֵּי same. B. Kam. 24ᵇ כיין … דמְשַׁסֵּי ליה ומִשְׁתַּסֵּי וכ׳ (Ms. R. דמְשַׁסּוּ) since thou knowest of thy dog, that one can set him on and he will bite, thou oughtest not to have kept him.