The research published today concentrates primarily on property names (including houses, farms and other buildings), business names, and the names of streets and developments.
Mae’r ymchwil a gyhoeddir heddiw yn canolbwyntio’n bennaf ar enwau eiddo (gan gynnwys tai, ffermydd ac adeiladau eraill), enwau busnesau, ac enwau strydoedd a datblygiadau.