PS

*bry - to turn (EDA I 219)

Akkadian
barû - to be available, to stay (CAD B 120)

On reconstruction see Kogan 2015:219.

Arabic
bry - III. to vie, to compete for superiority; to emulate, to rival, to imitate (Lane 197)

Possibly related.

Geez
tabāraya - to follow successively, to do by turns, to alternate with one another, to relay one another (EDG 108)
Tigrinya
täbaräyä - to help one another, to do something by turns, to succeed each other (TED 1133)