toadstool/ˈtəʊdˌstuːl/EtymologyFrom Middle English tode-stole, tadstol, taddestol, equivalent to toad + stool. Compare dialectal English frogstool (“toadstool”), Saterland Frisian Poagestoul (“mushroom”, literally “frog's stool”), Dutch paddenstoel.nounAny inedible or poisonous mushroom, especially an amanita.