1. (Of a child) eldest; first-born.
2. (Of title) superior; prior.
3. (Of an estate) entailed. See ENTAILED. • This adjective traditionally follows the noun it modifies in sense 1 (bastard eigne) but precedes the noun in senses 2 & 3 (eigne title). — Also spelled eygne; aisne. — Also termed (in Law Latin) einetius.