PS

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

PES
*ˀbr - to be old (Kogan 2015: 276)

on meaning shift “sturdy, strong” > “old” cf. Buck 1949:959

Akkadian
abāru - strength (CAD A₁ 38)

Cf. abru 'strong'

Akkadian
abru - strong (CAD A₁ 63, AHw. 7)

CAD: mng. uncert. AHw.: 'stark, kräftig'
Cf. abāru 'strength'

Arabic
ˀbr - to be in a good, right, proper state (Lane 5)
Amharic
əbrit - conceit, vanity, arrogance; period of wealth; right, rule (AED 1195)
Chaha
abər - young person or animal in its prime (EDG 9)
Ezha
abər - young person or animal in its prime (EDG 9)
Endegen
awər - young person or animal in its prime (EDG 9)
Ennemor
aḇər - young person or animal in its prime (EDG 9)
Gyeto
aḇər - young person or animal in its prime (EDG 9)