Ebla

ìr-lu-um /ˁerrum/ - = Sum. [T]ÚG.UŠ.MUŠEN (VE 1232)

It denotes a kind of bird of prey according to Bonechi 2000: 269.

PS
*ˁarw/y-, ˁawr- - bird of prey (SED II No. 40)