Arabic

šarˁat-, širˁat- - string, chord (BK 1 1217, Lane 1535)

A clear meaning shift from ‘tendon’.

PS
*ŝVry/w/ˁ-, *ŝVry/ ˁ-ān- - (Achilles) tendon; sinew, muscle (of leg) (SED I No. 268)
A very difficult case (v. SED I).