Bastard Eigne
Bouvier's Law Dictionary and Concise Encyclopedia · John Bouvier; revised by Francis Rawle · 1914
Bouvier's Law Dictionary and Concise Encyclopedia
Bastard elder
By the old English law, when a man had a bastard son, and he afterwards married the mother, and by her had a legitimate son, the first was called a bastard eigne, or, as it is now spelled, aine, and the second son was called puisne, or since born, or sometimes he was called mulier puisne.
2 Bla. Com. 243.