shrimp (n.)
early 14c., "slender, edible marine crustacean," probably from Old Norse skreppa "thin person," from Proto-Germanic *skrimp- (see scrimp). Related to Old English scrimman "to shrink;" the connecting notion is probably "thinness" (compare Danish dialectal skrimpe "thin cattle"). The meaning "puny person" in English is attested from late 14c.; an especially puny one might be a shrimplet (1680s).