יָסַר (b. h.; cmp. אָסַר) [to tie up; cmp. חוּב.]
    Pi. - יִסֵּר, יִיסֵּר to chastise, chasten, try. Snh. 39ᵃ מְיַיסֵּר … ביסורין he (the king) punishes the prominent among them (the rebellious citizens); כך הקב"ה מי׳ וכ׳ so did the Lord visit Ezekiel in order to wash away the sins of Israel. Ab. Zar. 4ᵃ אֲיַסְּרֵם ביסורין וכ׳ I would visit them with afflictions in this world, in order that their arms be strengthened &c. Ex. R. s. 3, end המטה שתְּיַיסְּרֶנּוּ בו the staff wherewith to strike him (Pharaoh); a. fr.
    Hithpa. - הִתְיַסֵּר, , Nithpa. נִתְיַסֵּר to be chastened, tried. Gen. R. s. 62 היו מִתְיַיסְּרִין בחולי וכ׳ used to be visited with bowel diseases for ten days &c. (prior to their death), to indicate that the disease purifies (from sin); Treat. S’maḥ. ch. III. Y. Snh. X, 27ᵈ נתיי׳ בבנו הבכור he was punished with the death of his first-born son. Tanḥ. Noah 14 נתי׳ בבנו he was visited with trials through his son (being asked to sacrifice him). Ib. Vayigg. 6 נתי׳ בבנו was tried by his son (Joseph being sold); a. e.