עוּף II (b. h.; denom. of עוֹף) to fly. Sabb. 26ᵃ מפני שהוא עָף because it is volatile (explosive). [Sot. 45ᵃ עפו, עף Ar., v. צוּף.]
Pol. - עוֹפֵף same. Ber. 63ᵃ פרנסתו מְעוֹפֶפֶת לו כעוף his sustenance comes flying to him like a bird. Ḥull. XII, 3 היתה מעופפת if the mother bird was flying about the nest; Tosef. ib. X, 10. Pirké d’R. El. ch. IV ובשתים מְעוֹפְפִים וכ׳ and with two wings they fly, and they sanctify &c.; Yalk. Is. 271; a. e.