defnyddol

Welsh

Etymology

defnydd (“material”) +‎ -ol.

Adjective

defnyddol (feminine singular defnyddol, plural defnyddol, equative mor ddefnyddol, comparative mwy defnyddol, superlative mwyaf defnyddol)

Alternative form of defnyddiol (“useful; material”)

Mutation

Mutated forms of *defnyddol*
radical	soft	nasal	aspirate
defnyddol	ddefnyddol	nefnyddol	unchanged

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.

References

R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “defnyddol”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies