Definition
In historical Anglo-Norman legal usage, *flot* (also *floet*) denotes flood tide — the flowing in of the sea as opposed to its ebb. The term appears in early English legal texts concerned with tidal waters, shoreline rights, and the boundaries of royal or manorial jurisdiction over the foreshore. It is typically paired with its counterpart *ebbe* (ebb tide) to describe the full tidal cycle: the movement of water toward shore (*flot*) and its retreat (*retret* or *ebbe*). The phrase *un ebbe et un flot* — one ebb and one flood — was used as a measure of tidal periodicity relevant to defining the limits of certain maritime franchises and coastal tenures.
Common Language
Modern common usage (Wiktionary): "Forward line of own troops; front line" — a military acronym (FLOT) identifying the leading edge of friendly forces in a combat zone.
Historical common usage (Webster's 1913): Webster's 1913 does not list *flot* as a standalone English entry. The word had no established place in ordinary American or British English of that period.
The modern acronym FLOT (military) and the legal-historical term *flot* (tidal law) are entirely unrelated in origin and meaning. A researcher encountering *flot* in a legal or historical text should discard the military meaning entirely; the legal term is a survival of Law French vocabulary from medieval English property and maritime law.
Common Confusion
*Flot* is easily confused with *float* in transcribed or printed historical documents where archaic typefaces and copyist hands collapse the distinction. More substantively, researchers sometimes conflate *flot* with *flux* (the general flow or course of a stream), but *flot* carries the specific sense of tidal action — the sea's landward advance — rather than freshwater flow or current generally. It should also be distinguished from *flotage* or *flotsam*, which concern objects carried or left by water rather than the tidal movement itself.
Why It Matters in Research
*Flot* is a term of art in the Law French layer of early English common law and appears almost exclusively in texts dealing with foreshore rights, fishery franchises, wreck, and the limits of admiralty or manorial jurisdiction over tidal land. Researchers working in these areas should be alert to several navigational points.
First, the term appears in paired formulas. *Un ebbe et un flot* and *un flot et un retret* are not merely descriptive — they function as legal markers of the tidal zone, defining the space between high and low water that was the subject of contested royal, manorial, and ecclesiastical claims in medieval England. Encountering either phrase is a signal that the surrounding text concerns jurisdiction over tidal foreshore.
Second, the corpus of sources using *flot* is narrow and old. Britton (the late-thirteenth-century legal treatise cited in Burrill) is the primary vehicle; Bracton and Fleta touch related concepts using different vocabulary. Researchers should cross-check against those texts when tracing the development of tidal boundary doctrine.
Third, because *flot* survived into early modern legal writing only as a term of art embedded in quotations or glosses, it is rarely defined in context. Editors and abridgers often silently translated or paraphrased it, which means the term may be present in substance in later texts even when the word itself has dropped out. Tracing flood-tide doctrine through the seventeenth and eighteenth centuries requires attention to functional equivalents in English: "flood tide," "flow of the sea," and "high-water mark" carry much of the same legal freight.
Fourth, the tidal-boundary questions to which *flot* was central remain live in modern coastal property law, even though the Law French vocabulary is long gone. A researcher moving from historical sources into modern doctrine will find that the medieval flot/ebbe framework underlies contemporary disputes about the public trust doctrine, foreshore ownership, and the ordinary high-water mark test.
Historical Dictionary Support
Burrill's Law Dictionary is the primary English-language legal dictionary source to define *flot* explicitly, translating it as "a flow or flood; flood tide" and citing Britton, chapters 44 and 123. Burrill's entry is brief but accurate; it correctly identifies the term as Law French and grounds it in a specific authoritative source.
Other major historical legal dictionaries — including Jacob's Law Dictionary, Bouvier's Law Dictionary, and Black's early editions — do not carry a standalone entry for *flot*, though they address related concepts (flotsam, foreshore, flood, tide) in separate entries. This gap means Burrill is disproportionately important for researchers encountering *flot* in source material. The absence of the term from American legal dictionaries reflects its obsolescence by the time American legal lexicography matured; the underlying doctrine migrated into common law real property and admiralty doctrine without carrying the Law French vocabulary with it.