411 REFERENCE · Wiktionary
Nos Galan Gaeaf
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Welsh
cy:
Etymology
the Eve of the Calends of Winter All Hallows' Eve.
Noun
f Nos Galan Gaeaf
Halloween, All Hallows' Eve
Further reading
cy Christianity Calendar Holidays