syrthio allan
Welsh
Verb
syrthio allan (first-person singular present syrthiaf allan, not mutable)
- (idiomatic) to fall out, to cease to be friendly
- Synonym: cwympo allan
- Used other than figuratively or idiomatically: see syrthio, allan.
Further reading
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “cwympo”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies