Astrol. Also in L. form synastria. [f. Gr. σύν SYN- + ἀστρ-, ἀστήρ star + -Y.] Coincidence or agreement of the influences of the stars over the destinies of two persons.
1657. W. Morice, Coena quasi Κοινὴ, xvi. 292. There is some conformity in judgment and affection between them, as they write there is among those, between whom there is a Synastry, and who have the common Stars and influences at their Nativities.
1855. Kingsley, Westw. Ho! xv. That these strange attachments were due to a synastria, or sympathy of the stars, which ruled the destinies of each person.
1860. Motley, Netherl., I. vii. 366. Born in the same day of the month and hour of the day with the Queen, but two years before her birth, the supposed synastry of their destinies might partly account in that age of astrological superstition, for the influence which he [sc. the Earl of Leicester] perpetually exerted.
