ex·pis·cate \ˈekspə̇ˌskāt, ekˈspiˌs-\transitive verb (-ed/-ing/-s) Etymology: Latin expiscatus, past participle of expiscari, from ex- ex- (I) + piscari to fish, from piscis fish — more at fish chiefly Scotland: to discover by careful examination or investigation : search out < has with much ingenuity endeavored to expiscate the truth — W.L.Alexander > • ex·pis·ca·tion\ˌekspəˈskāshən, -(ˌ)spiˈs-\noun-schiefly Scot