hwylbren uchaf
Welsh
Noun
hwylbren uchaf m or f (plural hwylbrennau uchaf, not mutable)
Further reading
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “hwylbren uchaf”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies