changes to property names in Gwynedd were even more likely to involve changing an English language property name to a Welsh language property name compared to the other localities that were researched
Roedd newidiadau i enwau eiddo yng Ngwynedd hyd yn oed yn fwy tebygol o gynnwys newid enw eiddo Saesneg i enw eiddo Cymraeg o'i gymharu â'r ardaloedd eraill a ymchwiliwyd iddynt.