Main Entry: ¹mil·dew

Pronunciation: \ˈmil-ˌdü, -ˌdyü\

Function: noun

Etymology: Middle English, from Old English meledēaw honeydew; akin to Old High German militou honeydew

Date: 14th century

1 a : a superficial usually whitish growth produced especially on organic matter or living plants by fungi (as of the families Erysiphaceae and Peronosporaceae) b : a fungus producing mildew
2 : a discoloration caused by fungi

— mil·dewy \-ē\ adjective