gadael ar (first-person singular present gadawaf ar)
- (idiomatic) to leave to someone's own decision
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “gadaf”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies