transitive verb 1 make a layer of mold and mildew from forming on one thing: the heat moldy fruit; moisture corrodes metals; ( fig ) the time moldy memory; 2 pronominal verb be unusable a thing material or immaterial by have been discontinued for a long time customs enmohecen. enmohecerse3transitivo and pronominal flourish, gray. Bloom only have pronominal use. Gray has intransitive and pronominal use. All apply to certain things, such as bread, cheese, fruit, etc.