astromancyrare.|ˈæstrəʊˌmænsɪ| [ad.med.L. astromantīa, a. Gr. ἀστροµαντεία, f. ἄστρο- star + µαντεία divination: see -mancy.] Divination by the stars; ‘astrology’ in the modern sense. 1652Gaule Magastrom. 165 What difference betwixt astromancy, magomancy, or magastromancy..and all these?