sidanwellt

== Welsh == === Etymology === sidan (“silk”) +‎ gwellt (“grass”). === Pronunciation === IPA(key): /sɪˈdanwɛɬt/ === Noun === sidanwellt (plural, singular sidanwelltyn m, not mutable) silky bent, windgrass (Apera spp.) especially loose silky-bent, common windgrass (Apera spica-venti) ==== Derived terms ==== sidanwellt trwchus (“dense silky-bent”) === Further reading === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 15 December 2025.