pentyrru marwor ar ben rhywun
Welsh
Etymology
From the Bible, Romans 12:20.
Verb
pentyrru marwor ar ben rhywun (first-person singular present pentyrraf marwor ar ben rhywun)
- (idiomatic) alternative form of pentyrru marwor am ben rhywun (“to heap coals of fire on someone's head”)
Further reading
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “pentyrru marwor”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies