Analysis of information sources in references of the Wikipedia article "乌拉圭" in Chinese language version.
The word itself, "Uruguay," is clearly derived from the Guaraní, probably by way of the tribal dialect of the Charrúas […] from uru (a generic designation of wild fowl)
In Paraguay the Guaraní Indians call a fowl uruguaçú. The Cainguá in Misiones only say urú. […] A few Guaraní-speakiug Indians who call a hen uruguasu and a cock tacareo. Uruguaçu means "the big uru".
The word itself, "Uruguay," is clearly derived from the Guaraní, probably by way of the tribal dialect of the Charrúas […] from uru (a generic designation of wild fowl)
In Paraguay the Guaraní Indians call a fowl uruguaçú. The Cainguá in Misiones only say urú. […] A few Guaraní-speakiug Indians who call a hen uruguasu and a cock tacareo. Uruguaçu means "the big uru".