*מַשְׁתָּיֵי, (preced.) horsemen watering their horses. Lam. R. introd. (R. Joḥ. 1) (expl. שת שתו, Is. XXII, 7) מ׳ אזלין מ׳ אתיין וכ׳ one troop watering their horses went, another came, so that they appeared to be very numerous; Yalk. Is. 289 משתי (corr. acc.).