marchredyn llydan

Welsh

Welsh Wikipedia has an article on:

marchredynen lydan

Wikipedia ^cy

marchredyn llydan f (collective, singulative marchredynen lydan)

Mutated forms of *marchredyn llydan*
radical	soft	nasal	aspirate
marchredyn llydan	farchredyn llydan	unchanged	unchanged

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.

^ Cymdeithas Edward Llwyd (2003) Planhigion Blodeuol, Conwydd a Rhedyn [Flowering Plants, Conifers and Ferns] (Cyfres Enwau Creaduriaid a Planhigion; 2)‎^[1] (in Welsh), Llanrwst: Gwasg Carreg Gwalch, →ISBN, page 4‎^[2]