דיומד

דְּיוֹמַדm. (perh. a perversion of δίδυμος, forked, cmp. LXX, Josh. 8:29; popular etymol. = דְּיוֹ עַמּוּדִין, v. דְּיוֹ II; Erub.18a) a corner-piece made of two boards rectangularly joined or of a block dug out in the shape of a trough, four of which corner-pieces form, in legal fiction, an enclosure of wells (v. פַּס), making the ground so enclosed a private place for Sabbath use. Erub.15a, a. fr. נייון משום ד׳ is considered as a diomad (two fictitious walls). Y. ib. II, 20a top, opp. פשוט a plain bar; a. fr.Pl. דְּיוֹמְדִין. Ib. II, 1 ארבע ד׳ נראין כשמונה four corner pieces having the appearance of eight bars; a. fr. דיומדין, Y.Shebi.VII, beg.37b, v. דִּימוֹרוֹן.