llwydni

== Welsh == === Etymology === llwyd (“grey”) +‎ -ni === Noun === llwydni m (uncountable) greyness, hoariness (phytopathology) mould, mildew Synonyms: cawod, malltod, pridd ==== Derived terms ==== gwrthllwydni (“mildew-resistant”) ==== Related terms ==== rhydni (“rust, rubigo”) === Mutation === === References ===