ăpŏcătastăsis, is, f., = ἀποκατάστασις,
a restoring to a former position; in astronomy, the return of the stars to their position of the preceding year , App. Ascl. 84, 6 Elm. (in Col. 3, 6, 4, written as Greek).
The time in which a planet returns to the same point of the zodiac whence it departed. ...
The Sailor's Word-Book