Niagaran.

Niagarawaterfall 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.