SEDonline
Semitic Etymological Database
Words
Reconstructions
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Akkadian
pušku - span
(CAD P 542, AHw. 883)
Or pusku.
The Aramaic origin, first proposed for this word by von Soden 1968:263, seems highly probable.
Reconstruction
PArm
*pušk-
- handbreadth
(EDA I)