זַרְדְּתָא, (זרד) bushes of sorb, or service-tree, growing in unhealthy marshes (v. Löw. Pfl. p. 289) Pes. 111ᵇ דבי ז׳ שידי (v. Rabb. D. S. a. l. note 400) the spirits of the sorb-bushes are named shiddé (demons). Ib. ז׳ סמיכא למתא וכ׳ a sorb-bush near a town has no less than sixty shiddé; [Ms. M. זַרְזְתָא, זִירְזְתָא, זַרְתָּא; v. Rabb. D. S. a. l. notes).—Kidd. 73ᵇ ז׳ … יש בו וכ׳ a child exposed in a sorb-bush near a town (where it is likely to die) is considered a foundling (אֲסוּפִי). Keth. 79ᵃ אבא ז׳ וכ׳ a forest (of timber), a sorb plantation and a fish-pond.