eisne
eisne (ayn), adj. [Law French] Hist. Eldest; firstborn. — Also spelled eigne, einsne, aisne, eign. bastard eisne. Hist. An illegitimate son whose parents afterward marry and have a second son (mulier puisne) for lawful issue.
eisne (ayn), adj. [Law French] Hist. Eldest; firstborn. — Also spelled eigne, einsne, aisne, eign. bastard eisne. Hist. An illegitimate son whose parents afterward marry and have a second son (mulier puisne) for lawful issue.