ἑταῖρος

Etymology
From, from.

Noun

 * 1) comrade, companion, partner, friend
 * 2) pupil, disciple
 * 3) member of a religious guild
 * 4)  lover, member of a pair of lovers
 * 5)  the guards i.e. the cavalry of the Macedonian kings
 * 6)  associate of