PC

*ˀabbīr-/*ˀabīr- - strong, mighty (Kogan 2015: 276)

PS
*ˀbr - to be strong, vigorous (Kogan 2015: 276)

Ugaritic
ˀibr - a stocky male animal (bull, horse) (DUL 10)
probably a substantivized adjective *ˀab(b)īr- ‘strong, mighty’
Hebrew
ˀabbīr - strong (HALOT 6)
Hebrew
ˀābīr - bull; stallion (HALOT 6)
artificially differentiated from ˀabbīr ‘strong’