PNWS

*šrḳ - to whistle (Kogan 2015:238)

Hardly any connection with Amh. sərḳ alä ‘to hiccup’

Hebrew
šrḳ - to whistle (HALOT 1656)
Syriac
šrḳ - (aph.) to whistle, hiss; to whisper to; to play; to shine (LSyr. 810, SL 1611)