Cadded

Past tense of 'cad' (to act as a cad, or to fish with caddis larvae); or describing something covered with or made of caddis materials.

Past tense of the verb 'cad', which derives from the noun 'cad' (caddis larva or the materials it uses). As fishing terminology, this verb developed from the practical activity of using caddis larvae, with '-ed' marking past action following standard English verb conjugation.