NEST  , the

place where a bird lays its eggs, hatches them out, and shelters them until they are fledged . The word is used by analogy of other animals than birds, insects, &c . It appears in much the same form in Teutonic languages; related to it are Irish nead, and Lat. nidus, whence Fr. nid . It has been referred to the Gr. v6o-roc, return home, but it is now established that it represents a form nizdo- for nisido-, from ni-, down; cf . " nether," and sed-, to sit . Sanskrit has nida . The Lat. nidus has given the scientific term for nest-building, nidification (q.v.) .