Definition
In Roman civil law, *nubilis* (rendered in some sources as "ndbilis") denotes a person who has reached the age at which marriage is legally permissible — that is, one who is of marriageable age. The term describes a legal status rather than a personal quality, marking the threshold at which an individual could enter into a valid Roman marriage (*iustum matrimonium*). Below this threshold, a person was considered legally incapable of consenting to marriage regardless of parental consent or social custom.
Common Confusion
*Nubilis* should not be confused with *habilis* (capable, fit) or *nobilis* (noble, of distinguished birth), two Latin legal terms with distinct meanings that appear in similar textual contexts. The typographical corruption "ndbilis" in some sources may cause additional confusion. When in doubt, context will clarify: the term appears in discussions of marriage capacity, not social rank or general legal competence.
Why It Matters in Research
This term appears almost exclusively in sources dealing with Roman civil law and its reception into later European legal systems. Researchers encountering the term in historical legal texts — particularly in discussions of marriage capacity, guardianship (*tutela*), and the legal status of minors — should understand it as a term of art tied to Roman law's age-based framework for matrimonial eligibility.
The variant spelling "ndbilis" found in some dictionary supplements is almost certainly a transcription or typographical error for the correct Latin *nubilis* (from *nubere*, to marry or to veil). Researchers using digitized or OCR-processed versions of Black's and similar historical dictionaries will encounter such corruptions regularly. Do not treat "ndbilis" as a distinct term — treat it as a defective rendering of *nubilis* and research accordingly.
The concept matters in historical corpus research primarily in three contexts: (1) Roman law scholarship and the civil law tradition; (2) canon law discussions of marriageable age, which drew heavily on Roman civil law categories; and (3) early American and English equity materials that occasionally invoked Roman and civil law concepts when addressing marriage of minors or guardianship disputes. In these materials, *nubilis* may appear untranslated, particularly in treatises with strong civilian influence.
Researchers should also note that the Roman law age thresholds for *nubilis* status — twelve years for females, fourteen for males, reflecting Justinianic standards — differ substantially from both modern legal ages of marriage and from the varying ages recognized in English common law and canon law. Importing Roman definitions without adjustment will produce anachronistic readings of non-Roman sources.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) Supplemental identifies *ndbilis* (i.e., *nubilis*) as a Latin civil law term meaning "marriageable; one who is of a proper age to be married." The entry is sparse, offering no elaboration on what age was required or how the standard operated within the Roman law framework. This brevity is typical of Black's treatment of Latin civilian terms in the supplemental materials, which function more as glossary aids than substantive legal analyses.
No entry for this term appears in the main body of Black's 2nd Edition or in standard common law dictionaries, reflecting the term's limited penetration into Anglo-American legal vocabulary. Bouvier's Law Dictionary and similar American sources of the period do not appear to include the term, consistent with the common law tradition's preference for its own vocabulary of marriageable age rather than Roman civil law terminology.
The historical dictionaries do not address the canon law usage or the divergence between Roman law age standards and those applied in ecclesiastical courts — a gap researchers working in those areas must fill through specialist sources in canon law and legal history.