1) Attendant on Artemis 2) Companion of artemis 3) Companion of Pan 4) Companion to Artemis 5) Daphne or echo 6) Echo or Cyllene 7) Echo was one 8) Echo 9) Follower of Artemis 10) Greek mountain nymph 11) Greek nymph 12) Grotto nymph 13) Hill deity 14) Hill nymph 15) Mount Ida maiden 16) Mountain maiden Found on https://www.crosswordclues.com/clue/oread
(from the article `nymph`) ...of nature with which they were connected. The Oceanids, for example, were sea nymphs; the Nereids inhabited both saltwater and freshwater; the ... Found on http://www.britannica.com/eb/a-z/o/28
O're·ad noun [ Latin Oreas , - adis , Greek 'Oreia`s , -a`dos , from 'o`ros mountain: confer French oréade .] (Class. Myth.) One of the nymphs of mountains and grottoes. « Like a wood nymph light, Oread or Dryad.» Found on http://www.encyclo.co.uk/webster/O/30