# fides
## Latin
### Etymology 1

From Proto-Indo-European *bʰeydʰ- (“to command, to persuade, to trust”). Cognate to Latin fīdō (“I trust”) and Proto-Germanic *bīdaną.

#### Pronunciation

* (Classical Latin) IPA: /ˈfi.deːs/, [ˈfɪd̪eːs̠]
* (modern Italianate Ecclesiastical) IPA: /ˈfi.des/, [ˈfiːd̪es]

#### Noun

fidēs f (genitive fideī); fifth declension
* faith, belief (belief without empirical evidence, direct experience, or observation)
* reliance (act of relying on or trusting)
    Synonym: fīdūcia
* confidence, trust (confidence in or reliance on some person or quality)
* credit (acceptance of the truth of something said or done)
* loyalty, fidelity, faith (state of demonstrating undivided and constant support for someone or something)
* good faith (good, honest intentions)
* honesty (act, quality, or condition of being honest)
* guarantee, promise (an assurance of something to be done)
    Synonyms: prōmissum, pollicitum, prōmissiō, crēdentia
* help, assistance
    Synonyms: adiūtus, adiumentum, auxilium, subsidium, ops, praesidium
** 27 BCE – 25 BCE, Titus Livius, Ab Urbe Condita I.7:Fidem pastorum nequiquam invocansvainly appealing for help to the shepherds

##### Declension

Fifth-declension noun, singular only.

##### Derived terms

* fidēs Pūnica
* Sōlifidiānus

##### Related terms

* fidēlis
* fidēlitās
* fīdō
* fīdus

##### Descendants

* Dalmatian:
** faid
* Italo-Romance:
** Italian: fede
** Sicilian: fidi
*** → Maltese: fidi
* Insular Romance:
** Sardinian: fide, fidi
* North Italian:
** Friulian: fede
** Old Piedmontese: fay
*** Piedmontese: fèj
** Romansch: fai
** Venetan: fè
* Gallo-Romance:
** Catalan: fe
** Old French: foi, feid, fid, fiet (archaic), fai, fei, foy
*** Champenois: fiate, fiaite
*** Middle French: foy
**** French: foi
**** → English: foy, Foy
*** Norman: fouai
*** → Middle English: feith, feiþ, feyth, feyt, faith, faythe, fath, fai, fay, faye, fei, fey, feye
**** English: faith
**** Scots: faith
**** Yola: faaighe, faighe, faigh, fythe
** Old Occitan: fe, fei
*** Occitan: fe
* Ibero-Romance:
** Asturian: fe
** Old Galician-Portuguese: fe
*** Fala: fe
*** Galician: fe
*** Portuguese: fé
** Old Spanish: fe, fee, fed
*** Spanish: fe
* Borrowings:
** → Albanian: fe
** → Welsh: ffydd

### Etymology 2

From Ancient Greek σφίδη (sphídē).

#### Pronunciation

* (Classical Latin) IPA: /ˈfi.deːs/, [ˈfɪd̪eːs̠]
* (modern Italianate Ecclesiastical) IPA: /ˈfi.des/, [ˈfiːd̪es]

#### Noun

fidēs f (genitive fidis); third declension
* (music) chord, string, gutstring
** c. 25 BCE, Ovid, Heroides, Letter 15: "Sappho Phaoni":
    Sume fidem et pharetram fies manifestus Apollo
       Take up string and quiver and you are Apollo manifest
* (in the plural) lyre, lute, harp (by extension) (any of a number of ancient stringed musical instruments)

##### Usage notes

Usually encountered in the plural.

##### Declension

Third-declension noun (i-stem).

##### Derived terms

* fidicen
* fidicula

### Etymology 3

Inflection of fīdō (“I trust”).

#### Pronunciation

* (Classical Latin) IPA: /ˈfiː.deːs/, [ˈfiːd̪eːs̠]
* (modern Italianate Ecclesiastical) IPA: /ˈfi.des/, [ˈfiːd̪es]

#### Verb

fīdēs
* second-person singular future active indicative of fīdō

### References

* “fides1”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* “fides2”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* “fides”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
* fides 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)
* fides in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
* Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co. to fly to some one for refuge: confugere ad aliquem or ad opem, ad fidem alicuius to give a veracious and historic account of a thing: narrare aliquid ad fidem historiae to teach some one to play a stringed instrument: docere aliquem fidibus to learn to play a stringed instrument: fidibus discere (De Sen. 8. 26) to play on the lyre: fidibus canere to strike the strings of the lyre: pellere nervos in fidibus to believe a person: fidem habere alicui to make some one believe a thing: fidem alicuius rei facere alicui to believe in, trust in a thing: fidem tribuere, adiungere alicui rei to rob a person of his credit: fidem abrogare, derogare alicui to weaken, destroy a man's credit: fidem alicuius imminuere, infirmare (opp. confirmare) to entrust a thing to a person's good faith: committere aliquid alicui or alicuius fidei to preserve one's loyalty: fidem colere, servare to keep faith with a person, keep one's word: fidem praestare alicui to break one's word: fidem laedere, violare, frangere to make a person waver in his loyalty: fidem alicuius labefactare (Cluent. 60. 194) to put oneself under some one's protection: se conferre, se tradere, se permittere in alicuius fidem to flee for refuge to some one: confugere ad aliquem, ad fidem alicuius to take a person under one's protection: in fidem recipere aliquem (B. G. 2. 15. 1) to implore some one's protection: fidem alicuius obsecrare, implorare to confirm, ratify, sanction something: fidem addere alicui rei to guarantee the protection of the state; to promise a safe-conduct: fidem publicam dare, interponere (Sall. Iug. 32. 1) to give one's word that..: fidem dare alicui (opp. accipere) (c. Acc. c. Inf.) to keep one's word (not tenere): fidem servare (opp. fallere) to fulfil a promise: fidem persolvere to fulfil a promise: fidem (promissum) praestare to pledge one's word to..: fidem interponere (Sall. Iug. 32. 5) to break one's word: fidem prodere to break one's word: fidem frangere to make a thing credible: fidem facere, afferre alicui rei (opp. demere, de-, abrogare fidem) (ambiguous) a thing finds credence, is credible: aliquid fidem habet (vid. also fides under sect. VII., History) to rob a person of his credit: fidem derogare alicui to shake credit: fidem moliri (Liv. 6. 11. 8) to surrender oneself to the discretion of some one: se permittere in fidem atque in potestatem alicuius (B. G. 2. 3) to deal mercifully with some one: in fidem recipere aliquem (Fam. 13. 16) (ambiguous) historic times: historicorum fide contestata memoria (ambiguous) historic truth: historiae, rerum fides (ambiguous) an acknowledged historical fact: res historiae fide comprobata (ambiguous) genuine historical truth: incorrupta rerum fides (ambiguous) to remain loyal: in fide manere (B. G. 7. 4. 5) (ambiguous) to undermine a person's loyalty: de fide deducere or a fide abducere aliquem (ambiguous) having exchanged pledges, promises: fide data et accepta (Sall. Iug. 81. 1) (ambiguous) to be bound by one's word; to be on one's honour: fide obstrictum teneri (Pis. 13. 29) (ambiguous) a thing finds credence, is credible: aliquid fidem habet (vid. also fides under sect. VII., History) (ambiguous) to promise an oath to..: iureiurando ac fide se obstringere, ut (ambiguous) credit and financial position: fides et ratio pecuniarum (ambiguous) credit is going down: fides (vid. sect. IX. 10, note fides has six...) concidit (ambiguous) a man's credit begins to go down: fides aliquem deficere coepit (ambiguous) credit has disappeared: fides (de foro) sublata est (Leg. Agr. 2. 3. 8) (ambiguous) credit is low throughout Italy: fides tota Italia est angusta
* “fides”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
* “fides”, in William Smith, editor (1848), A Dictionary of Greek and Roman Biography and Mythology, London: John Murray
* “fides”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin
* Dizionario Latino-Italiano Olivetti

## Volapük
### Noun

fides
* dative plural of fid