Definition
In Louisiana civil law, *fils* means "sons" — and by statutory extension under the Civil Code of Louisiana, the term is defined to include daughters as well. The term appears in legal instruments, succession documents, and civil law texts derived from French legal tradition, where it functions as a term of relationship identifying lineal descendants of a named individual.
The entry in Burrill is truncated but points clearly to the Louisiana Civil Code's inclusive definition: wherever *fils* appears in a legal instrument governed by Louisiana law, it is not limited to male offspring. This is the operative legal content of the term.
Common Language
Modern common usage (Wiktionary): Plural of *fil* (a monetary unit used in several Middle Eastern and North African countries).
Historical common usage (Webster's 1913): "Son; — sometimes used after a French proper name to distinguish a son from his father, as, Alexandre Dumas, fils."
The legal usage of *fils* in Louisiana civil law tracks the French meaning ("son" or "sons") rather than the monetary meaning now primary in general English dictionaries. The critical legal departure is that Louisiana's Civil Code explicitly extends the term beyond its ordinary French sense to encompass daughters — a statutory expansion that would not be apparent to a researcher relying on ordinary French or common English usage alone.
Common Confusion
*Fils* as a kinship term should not be confused with *fil* (the currency unit) or with the adverbial/adjectival use in French biographical convention (as in "Dumas fils," meaning the younger). In a legal instrument, *fils* signals a defined term of relationship with statutory content, not merely a biographical distinguisher. Researchers working with French-language Louisiana documents from before codification should also be alert to whether the inclusive statutory definition was in force at the time of drafting.
Why It Matters in Research
The primary research trap here is gender assumption. A researcher encountering *fils* in a Louisiana succession instrument, act of donation, or testament might naturally read it as "sons" in the restrictive sense — excluding daughters from a bequest or legal designation. The Louisiana Civil Code's definition corrects this, but only if the researcher is aware of it. Pre-codification Louisiana documents or instruments drafted under Spanish or earlier French colonial law may not carry the same inclusive definition, requiring attention to the governing law at the time of execution.
The truncation in Burrill's entry is itself a research hazard: the definition runs directly into the entry for FILUM AQUÆ without completing the statutory text, meaning a researcher scanning quickly could miss the daughter-inclusive extension entirely.
This term is largely confined to Louisiana civil law research. It rarely appears in common law jurisdictions. When encountered in a multi-state succession or conflicts-of-law context, the Louisiana statutory definition controls for instruments governed by Louisiana law, but researchers should not assume it imports into other jurisdictions.
Historical Dictionary Support
Burrill is the only shelf source covering this term, and his entry is fragmentary — cut off mid-sentence before the statutory text completes. The Webster's 1913 entry provides useful confirmation of the ordinary French meaning ("son") and its conventional use in biographical contexts, but does not engage the legal dimension at all. No other historical legal dictionary in the Law Mind corpus appears to address *fils* as a standalone entry.
What the historical dictionaries collectively miss: the gender-inclusive statutory extension is the legally significant fact, and no historical dictionary entry fully states it. Researchers should go directly to the Louisiana Civil Code for the operative definition rather than relying on any dictionary source alone.
Jurisdictional Note
This term has legal significance almost exclusively in Louisiana, where French civil law tradition shaped the Civil Code. Common law states have no equivalent term of art. Researchers working with Louisiana instruments should identify the applicable edition of the Civil Code to confirm the inclusive definition was in force at the relevant date.
Encyclopedia Cross-Reference
See FILUM AQUÆ (for the adjacent Burrill entry, which follows immediately in the original text and is unrelated in meaning — useful to distinguish when navigating the source).