Dictionary entry

Eigne

Webster's Dictionary 1913

Eigne (?), a. [OF. aisné, ainsné, F. aîné, fr. L. ante natus born before. Cf. Esnecy.] 1. (Law) Eldest; firstborn. Blackstone.

2. Entailed; belonging to the eldest son.

Bastard eigne, a bastard eldest son whose parents afterwards intermarry.