briwydd groes

== Welsh == === Etymology === Literally, “cross bedstraw”. === Noun === briwydd groes f crosswort (Cruciata laevipes) Synonyms: llysiau'r groes, croeslys === Mutation === === Further reading === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 22 August 2025.