barnacle (n.)youdaoicibaDictYouDict[barnacle 词源字典]
early 13c., "species of wild goose;" as a type of "shellfish," first recorded 1580s. Often derived from a Celtic source (compare Breton bernik, a kind of shellfish), but the application to the goose predates that of the shellfish in English. The goose nests in the Arctic in summer and returns to Europe in the winter, hence the mystery surrounding its reproduction. It was believed in ancient superstition to hatch from barnacle's shell, possibly because the crustacean's feathery stalks resemble goose down. The scientific name of the crustacean, Cirripedes, is from Greek cirri "curls of hair" + pedes "feet."[barnacle etymology, barnacle origin, 英语词源]
NiagarayoudaoicibaDictYouDict
waterfall from Lake Erie to Lake Ontario, from a town name, perhaps from an Iroquoian language and meaning "a neck" (between two bodies of water); general sense of "a cataract, torrent" is attested from 1841; meaning " 'shower' of ringlets (true or false) in women's hair" is from 1864, also known as cataract curls.
Roundhead (n.)youdaoicibaDictYouDict
"adherent of the Parliamentary party in the English Civil War," 1641, so called for their custom of wearing the hair close-cropped, in contrast to the flowing curls of the cavaliers.