Brown-Driver-Briggs
עָגוּר noun [masculine] apparently understood by Masoretes as name of a bird; very uncertain;
crane according to Saad (Isaiah), but note of crane not suitable (Tristr
NHB 239 f.); —
וְתוֺר וְסוּס וְעָגוּר Jeremiah 8:7;
כְּסוּס עָגוּר Isaiah 38:14 (but here gloss Klo Brd Di Dn Che
Hpt); Thes and (in Jeremiah) Hi Gf Gie strike out
וְ and take
׳ע as adjective of
סוס =
twittering or the like; Thes assumes transpos. from
גער, Ethiopic
cry.
I, II, III. עַד see I. עדה. עֵד see עוד.
עֹד see עוֺד. עִדֹּא see עדד. below,
עדד (√ of following; compare Arabic 
count, reckon, 
number, period; Aramaic עִדָּנָא time).
