411 REFERENCE · Wiktionary
Oes yr Efydd
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Welsh
cy:
Noun
Oes yr Efydd f
cy archaeology the Bronze Age
cy yr Oes Efydd
Coordinate terms
cy Oes y Cerrig the Stone Age
cy Oes yr Haearn the Iron Age
Mutation
References