Meaning of fash in English:

fash

verb

Scottish fash oneself
  • Feel upset or worried.

    ‘she'll be coming soon, don't fash yourself’
    ‘it's only a wee bit of broken glass, dinna fash!’

Origin

Mid 16th century from early modern French fascher, based on Latin fastus ‘disdain, scornful contempt’.

Pronunciation

fash

/faʃ/