# falsus
## Esperanto
### Verb

falsus
* conditional of falsi

## Latin
### Etymology

Perfect passive participle from fallō (“deceive, trick; mistake”).

### Pronunciation

* (Classical Latin) IPA: /ˈfal.sus/, [ˈfäɫ̪s̠ʊs̠]
* (modern Italianate Ecclesiastical) IPA: /ˈfal.sus/, [ˈfälsus]

### Participle

falsus (feminine falsa, neuter falsum, superlative falsissimus); first/second-declension participle
* deceived, tricked, cheated, disappointed, having been deceived
* mistaken, having been mistaken, having deceived myself
* appeased, beguiled, having been appeased
* sworn falsely, perjured, having been sworn falsely
* (by extension) false, untrue

#### Declension

First/second-declension adjective.

#### Descendants

* Corsican: falzu
* Dalmatian: fuals
* Franco-Provençal: fôx
* Italian: falso
* Gallo-Italic:
** Lombard: fals
** Piedmontese: fàuss
* Old French: fals, falt, fro, faus, faux
** Middle French: faulx
*** French: faux
**** → English: faux
** Norman: faux
** Picard: foe
** → Dutch: vals
** → Middle English: fals, fauls, vals, faus, fauce (partly)
*** English: false
*** Scots: fause
*** Yola: fause, faulse, valse
*** → Irish: falsa, falsach, fallsa (superseded)
** → Middle High German: vals, fals
** → Middle Low German: vals
* Old Leonese:
** Asturian: falsu
* Old Occitan:
** Catalan: fals
** Occitan: fals
* Old Galician-Portuguese: falso
** Galician: falso
** Portuguese: falso
*** → Malay: palsu
**** Indonesian: palsu
* Franco-Provençal: fôx
* Old Spanish: falso
** Spanish: falso
* Rhaeto-Romance:
** Friulian: fals
** Romansch: fauss
* Sardinian: fàlsu, farsu
* Sicilian: fausu, farsu
* → Albanian: fallco
* → Icelandic: fals
* → Old English: fals
** Middle English: fals, fauls, vals, faus, fauce (conflated with Old French fals)
*** English: false
*** Scots: fause
*** Yola: fause, faulse, valse
*** → Irish: falsa, falsach, fallsa (superseded)
* → Romanian: fals

### Noun

falsus m (genitive falsī); second declension
* liar, deceiver

#### Declension

Second-declension noun.
| Case | Singular | Plural |
| Nominative | falsus | falsī |
| Genitive | falsī | falsōrum |
| Dative | falsō | falsīs |
| Accusative | falsum | falsōs |
| Ablative | falsō | falsīs |
| Vocative | false | falsī |

#### Related terms

* falla
* fallācia
* fallāciloquus
* fallāciōsus
* fallācitās
* fallāciter
* fallāx
* fallēns
* fallō
* falsārius
* falsātiō
* falsātus
* falsē
* falsidicentia
* falsidicus
* falsificātus
* falsificus
* falsiiūrius
* falsiloquium
* falsiloquus
* falsimōnia
* falsiparēns
* falsitās
* falsō
* falsum

### References

* “falsus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* “falsus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
* falsus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
* falsus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
* Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co. to be imbibing false opinions: opinionibus falsis imbui to distinguish true and false: vera et falsa (a falsis) diiudicare to confuse true with false: vera cum falsis confundere to start from false premises: a falsis principiis proficisci to rouse a vain, groundless hope in some one's mind: spem falsam alicui ostendere to accuse a person of forging the archives: accusare aliquem falsarum tabularum