twll du
Welsh
Etymology
Calque of English black hole
Noun
twll du m (plural tyllau duon)
- black hole (celestial body)
Mutation
| radical | soft | nasal | aspirate |
|---|---|---|---|
| twll du | dwll du | nhwll du | thwll du |
Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.
Further reading
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “twll du”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies