syrthio ymaith

Welsh

Verb

syrthio ymaith (first-person singular present syrthiaf ymaith, not mutable)

1. to fall off, to fall away
2. (figurative) to fall away, to stray

   Synonym: cwympo ymaith

Further reading

R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “syrthio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies