Definition
An archaic legal term, now entirely obsolete, representing a corrupted spelling of the French word *aïeul*, meaning grandfather. In historical English law, *aile* appeared in the context of real property actions — specifically the possessory assizes — where the relationship of a claimant to a deceased ancestor determined which form of action was available to recover land. The term is functionally synonymous with AIEL and refers to the grandfather in the line of descent relevant to those actions.
Common Confusion
AILE and AIEL are variant spellings of the same term and refer to the same concept. Bouvier cross-references the two explicitly. Researchers encountering either spelling in historical sources should treat them as interchangeable. Neither should be confused with BESAIEL (great-grandfather) or COSINAGE (a broader possessory assize covering more remote ancestors), which were distinct writs with different procedural requirements.
Why It Matters in Research
This term will appear only in historical sources, primarily treatises and materials predating the nineteenth-century abolition of the forms of action. The variant spelling *aile* reflects the phonetic drift common in Anglo-Norman legal vocabulary as French terms were absorbed into English legal usage — a pattern that produced multiple spellings for the same underlying concept across different manuscripts and editions. Researchers working in early real property law or the history of possessory assizes should index both AILE and AIEL when searching historical sources, as scribal and editorial inconsistency means neither form predominates reliably. The practical legal content lives under AIEL; this entry exists primarily to prevent a dead-end search.
Historical Dictionary Support
Bouvier's Law Dictionary treats AILE as a simple corruption of the French *aïeul* and redirects the reader immediately to AIEL, offering no independent substantive discussion. This is the appropriate treatment: the term carries no distinct legal content of its own. Historical dictionaries generally agree that the underlying concept — the writ of *aiel* — belonged to the family of petty assizes protecting seisin, and that its availability turned on the specific generational relationship between the claimant and the ancestor last seised of the land. Bouvier's handling reflects the broader lexicographic consensus that variant spellings of Anglo-Norman terms deserve acknowledgment for search purposes but need not be treated as independent legal concepts.