411 REFERENCE · Wiktionary
Rhyfel Byd Cyntaf
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
Welsh
Proper noun
m y Rhyfel Byd Cyntaf
the First World War, World War III
cy y Rhyfel Mawr
Coordinate terms
cy Ail Ryfel Byd yr Ail Ryfel Byd the Second World War
Mutation
Further reading
cy Historical events World War I Wars