(1) A pseudoscience claiming divination by the positions of the planets and sun and moon
Astro- + -logy
- From astrologia "astronomy", from ἀστρολογία astrologia "telling of the stars," from ἄστρον astron "star" + -λογία -logia "treating of", comb. form of λόγον logon "one who speaks (in a certain manner)".
(also called astrosophy, and astromancy)