gwyllgi

Welsh

Etymology

Either from gwyll (“twilight”) +‎ ci (“dog”) or a variant form of gwylltgi from gwyllt (“wild”) and ci (“dog”).

Pronunciation

• IPA^(key): /ˈɡwəɬɡi/

Noun

gwyllgi m (plural gwyllgwn)

1. (mythology) A hellhound from Welsh folklore, appearing as a large black mastiff.
   • 2012 August 12, “Amgueddfa werin dros dro yn Wrecsam”, in Cymru Fyw, BBC:

     Ymhlith atyniadau'r amgueddfa bydd storïwr yn adrodd hanes y Gwyllgi, un o gŵn du llên werin Cymru.

     Among the museum's attractions will be a storyteller telling the history of the Gwyllgi, one of the black dogs of Welsh folklore.

Mutation

Mutated forms of gwyllgi

radical	soft	nasal	aspirate
gwyllgi	wyllgi	ngwyllgi	unchanged

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

See also

• Cŵn Annwn

Further reading

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