יָשֵׁן I (b. h.; cmp. אֲשַׁן) [to recover strength, cmp. חָלַם,] to sleep, trnsf. to be idle, lazy. Shebu. III, 5 (I swear) שאִישַׁן that I will sleep, שיָשַׁנְתִּי that I have slept. Num. R. s. 20 בא לִישָׁן going to sleep.—Cant. R. to III, 1 ישנתי לי מן התירה וכ׳ I (Israel) have been lazy in the study of the Law and the performance of good deeds; a. fr.