Eigne
Bouvier's Law Dictionary and Concise Encyclopedia · John Bouvier; revised by Francis Rawle · 1914
Bouvier's Law Dictionary and Concise Encyclopedia
A corruption of the French word aine'. Eldest or first-born. It is frequently used in our old law-books; bastard eigne signifies an elder bastard when spoken of two children, one of whom was born before the marriage of his parents and the other after; the latter is called mulier puisne. Littleton, sect.
399.