nai·ad
noun/ˈnaɪæd/
/ˈnaɪæd/
(plural naiads or naiades
/ˈnaɪədiːz/
/ˈnaɪədiːz/
)- (in ancient stories) a water spirit
那伊阿得（水泽仙女） Word Originvia Latin from Greek Naias, Naiad-, from naein ‘to flow’. Use as a term in entomology dates from the early 20th cent.