fray

fray verb uk/freɪ/ us fray verb
(ANNOYED)

If your temper (= mood) fray s or your nerves fray , you gradually become annoyed or upset.

раздражаться, не выдерживать
After hours of waiting, tempers were beginning to fray .

FRAY noun

uk/freɪ/ us  enter/join, etc the fray
to start taking part in an argument or fight

вступать в бой, начинать действовать
The time had come for the US to enter the fray .