Meaning

noun common name for an edible agaric (contrasting with the inedible toadstool)

noun mushrooms and related fleshy fungi (including toadstools, puffballs, morels, coral fungi, etc.)

noun any of various fleshy fungi of the subdivision Basidiomycota consisting of a cap at the end of a stem arising from an underground mycelium

originFrom Middle English muscheron, musseron, from Anglo-Norman musherum, moscheron, from Old French moisseron, of obscure origin: probably derived from Old French mosse, moise ("moss"; whence also French mousse), as the use first applied to a type of fungus which grows in moss, from Frankish *mosu (“moss”) or Old Dutch *mosa (“moss”), akin to Old High German mosa (“moor, swamp”), Old High German mos…

Etymology from Wiktionary, CC BY-SA 3.0