Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Ballentine's Law Dictionary

    The eldest.

  • Black's Law Dictionary: 2nd Edition

    L. Fr. Eldest; eldest-born. The term is of common occurrence in the old books. Thus, bastard eigne means an illegitimate son whose parents afterwards marry and have a second son for lawful issue, the latter being called mulier puisne, (after-born.) Eigne is probably a corrupt form of the French "aini," 2 Bl. Comm. 248; Litt. ยง 399.