ὠδίς

Etymology
The formation is similar to, and  but the root is. The word has been connected with but the long initial vowel has not been explained yet. Van Beek suggests a derivation from. Alternatively, the word may be of origin, because of the suffix "-ῖν-".

Noun

 * 1) pangs or throes of childbirth (mostly in plural)
 * 2) that which is born amid throes, child
 * 3) travail, anguish (also of love)