Webster's Revised Unabridged Dictionary · 1913

Oread

Oread , noun

[Latin Oreas, -adis, Greek 'Oreia`s, -a`dos, from 'o`ros mountain: compare French oréade.]

(Class. Mythology) One of the nymphs of mountains and grottoes.
Like a wood nymph light, Oread or Dryad. — Milton