cowpea/ˈkaʊpiː/EtymologyFrom cow + pea.cowpea means any of the plants in the species Vigna unguiculata, including the black-eyed pea. Lexicurio rates it Sui generis — a strength score of 85 out of 100.nounAny of the plants in the species Vigna unguiculata, including the black-eyed pea.