astromancy

[as-truh-man-see] /ˈæs trəˌmæn si/
noun
1.
divination by means of the stars.
Origin
1645-55; < Medieval Latin astromantīa < Greek astromanteía. See astro-, -mancy
Related forms
astromancer, noun
astromantic, adjective
Contemporary definitions for astromancy
noun

divination by the stars; also called astrology

Word Origin

Greek astro 'star'