PWS

*prpr - to break, to crush (EDA I 201)

PS
*prr - to break, to crush (EDA P 139)

Arabic
frfr - to cut, to break, to cleave, to split (Lane 2356)
Geez
farfara - to crumble bread (EDG 165)
Tigre
färfärä - to gnaw apart (WTS 660)
Tigrinya
färfärä - to dig out (TED 2674)
Amharic
färäffärä - to crumble, to break into small pieces; to furrow, to bore a hole; to carve, to dig into wood (AED 2290)
Harari
firäfärä - to crumble into small pieces (EDH 64)
Zway
fәräfärä - to crumble bread (EDG 241)
Endegen
fәräffärä - to crumble bread (EDG 241)
Soddo
fәraffärä - to crumble bread (EDG 241)
Mehri
fәrfīr - hasty person (ML 98)