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English word origin

Etymology of false

From Middle English false, fals, from Old English fals (“false; counterfeit; fraudulent; wrong; mistaken”), from Latin falsus (“counterfeit, false; falsehood”), perfect passive participle of fallō (“deceive”). Reinforced

1 source sectionExtended source reportWiktionary original ↗
In this entry · 1 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Unnumbered source etymology

Original entry ↗
adj

Untrue, not factual, factually incorrect. · Based on factually incorrect premises. · Spurious, artificial. · Of a state in Boolean logic that indicates a negative result.

noun

One of two options on a true-or-false test, that not representing true.

adv

In a dishonest and disloyal way; falsely.

verb

To incorrectly decode noise as if it were a valid signal. · To begin a race before being instructed to do so; to do a false start. · To violate, to betray (a promise, an agreement, one’s faith, etc.). · To counterfeit, to forge.

Selected source glosses provide context, not a complete modern definition inventory

From Middle English false, fals, from Old English fals (“false; counterfeit; fraudulent; wrong; mistaken”), from Latin falsus (“counterfeit, false; falsehood”), perfect passive participle of fallō (“deceive”). Reinforced in Middle English by Anglo-Norman and Old French fals, faus. Compare Scots fals, false, Saterland Frisian falsk, German falsch, Dutch vals, Swedish and Danish falsk; all from Latin falsus. Displaced native Middle English les, lese, from Old English lēas (“false”); See lease, leasing. Doublet of faux. The verb is from Middle English falsen, falsien, from Old French falser, from Latin falsō (“falsify”), itself also from falsus; compare French fausser (“to falsify, to distort”).

Relationships mentioned by the source

These are extracted mentions, not a timeline or a verified sequence of immediate parents.

This page abbreviates 7 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for false →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger
Machine-source provenance
Source SHA-256
5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run
73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID
w-ZmFsc2U