eisbyrg

== Welsh == === Etymology === Borrowed from English iceberg. === Noun === eisbyrg m (plural eisbyrgs) iceberg Synonyms: mynydd iâ, rhewfryn === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “eisbyrg”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies