false

Also the rule of false position, with dyuers examples not onely vulgar, but some appertaynyng to the rule of Algeber.

1551, James A.H. Murray, editor, A New English Dictionary on Historical Principles: Founded Mainly on the Materials Collected by the Philological Society, volume 1, Oxford: Clarendon Press, published 1888, Part 1, page 217, column 2:

Untrue, not factual, factually incorrect.

false legislation, false punishment

false teeth

At her invitation he outlined for her the succeeding chapters with terse military accuracy; and what she liked best and best understood was avoidance of that false modesty which condescends, turning technicality into pabulum.

1907 August, Robert W[illiam] Chambers, “Silverside”, in The Younger Set, New York, N.Y.: D. Appleton & Company, →OCLC, page 300:

(logic) Of a state in Boolean logic that indicates a negative result.

a false witness

Uttering falsehood; dishonest or deceitful.

a false friend, lover, or subject;  false to promises

I to my ſelf was falſe, e’re thou to me,[…]

1671, John Milton, “Samson Agonistes, […].”, in Paradise Regain’d. A Poem. In IV Books. To which is Added, Samson Agonistes, London: […] J[ohn] M[acock] for John Starkey […], →OCLC, page 52, line 25:

She had been in Baton Rouge but a little over two weeks, when suddenly his letters ceased. She awaited in anxious suspense a whole week — no letter. Another week dragged heavily, and her anxiety became a terrible fear. Was he sick and unable to write — was he dead — or, still more terrible thought, had he proved false?

1861, E. J. Guerin, Mountain Charley, page 7:

Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.

a false conclusion;  a false construction in grammar

So downe he fell, as an huge rockie clift, / Whoſe falſe foundacion waues haue waſht away,[…]

1590, Edmund Spenser, “Book I, Canto XI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC, stanza 54, page 170:

Not well founded; not firm or trustworthy; erroneous.

Not essential or permanent, as parts of a structure which are temporary or supplemental.

false scorpion (an arachnid)

false killer whale (a dolphin)

false powderpost beetles (members of Bostrichidae not in Lyctinae)

Used in the vernacular name of a species (or group of species) together with the name of another species to which it is similar in appearance.

en-adj

false (comparative falser, superlative falsest)

falser (comparative)
falsest (superlative)

неверен

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”).


false

(electronics, telecommunications, of a decoder) To incorrectly decode noise as if it were a valid signal.

And he that could with giftes and promiſes,
Inueigle him that lead a thouſand horſe,
And make him falſe his faith vnto his King,
Will quickly win ſuch as be like himſelfe.

c. 1587–1588, [Christopher Marlowe], Tamburlaine the Great. […] The First Part […], 2nd edition, part 1, London: […] [R. Robinson for] Richard Iones, […], published 1592, →OCLC; reprinted as Tamburlaine the Great (A Scolar Press Facsimile), Menston, Yorkshire, London: Scolar Press, 1973, →ISBN, Act II, scene ii:

(obsolete) To violate, to betray (a promise, an agreement, one’s faith, etc.).

(obsolete) To make false, to corrupt from something true or real.

en-verb

false (third-person singular simple present falses, present participle falsing, simple past and past participle falsed)

falses (present singular third-person)
falsing (participle present)
falsed (participle past)
falsed (past)


false

Sweet Lord, you play me falſe.

1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act V, scene ii], page 17, column 2:

In a dishonest and disloyal way; falsely.

en-adv

false (comparative more false, superlative most false)

more false (comparative)
most false (superlative)


false

The student received a failing grade for circling every true and false on her quiz.

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


false

first/third-person singular present subjunctive

inflection of falsar:
third-person singular imperative


false

la-adv

falsē (comparative falsius, superlative falsissimē)

falsē (canonical)
falsius (comparative)
falsissimē (superlative)


false

inflection of fals:
strong accusative feminine singular

strong instrumental masculine/neuter singular

strong nominative/accusative masculine/feminine plural

weak nominative feminine/neuter singular

inflection of fals:
weak accusative neuter singular