fido Latin · revision 3502

+ {{infobox|confidence=established|formation=inherited|attested=Plautus|origins=ine-pro *bʰeidʰ-}}

+

+ ==Pronunciation==

+ * IPA (Classical): [ˈfiː.doː]^(Wiktionary)

+ * IPA (Ecclesiastical): [ˈfiː.do]^(Wiktionary)

+

+ ==Forms==

+ '''fīdō''' (present infinitive fīdere, perfect active fīsus sum); third conjugation, semi-deponent^(Wiktionary)

+

+ ==Etymology==

+ It is [[inh|itc-pro|*feiþe-]], [[inh|ine-pro|*bʰeidʰ-e/o-|t=to trust]].^(de Vaan 2008)^(Wiktionary) From the same root came [[fidus|alt=fīdus]] “faithful” and [[fides|alt=fidēs]] “trust”, and also [[foedus]] “treaty”.^(de Vaan 2008)

+

+ Cognate with [[xum|kumpifiatu|t=let him announce]],^(de Vaan 2008) [[grc|πείθομαι|tr=peíthomai|t=to obey, trust]] and [[got|𐌱𐌴𐌹𐌳𐌰𐌽|tr=beidan|t=to wait]] and [[en|bide]].^(OLD 2012)^(de Vaan 2008)^(TLL)

+

+ ==Earliest recorded meaning==

+ It is found from Plautus onwards.^(de Vaan 2008)

+

+ ==Semantic evolution==

+ It meant to trust, have confidence in, or rely on, with an ablative or dative, as Cicero's ''prudentia fidens'' “relying on one's good sense”.^(OLD 2012)^(Gaffiot 2016) ''Sibi fidere'' meant to be self-confident, and with an infinitive clause it meant to trust that something was so, as in Livy.^(OLD 2012)^(Georges 1913)

+

+ The perfect was the deponent form ''fīsus sum''.^(Wiktionary) It survives as Italian ''fidare'', French ''fier'' and Spanish and Portuguese ''fiar''.^(Wiktionary) English ''federal'' and ''fidelity'' come from its relatives ''foedus'' and ''fidelitas''.^(Etymonline)

+

+ ==Timeline==

+ * c. 250–184 BC – Plautus uses it.^(de Vaan 2008)^(Köbler 2010)

+ * 81–43 BC – Cicero uses ''sibi fidere'', “to be self-confident”.^(Gaffiot 2016)^(Köbler 2010)

+ * 59 BC–17 AD – Livy uses it with an infinitive clause.^(Georges 1913)^(Köbler 2010)

+

+ ==Meanings==

+ ===Verb===

+ # To [[m|en|trust]], have confidence in.^(OLD 2012)^(Wiktionary)

+ # To rely on, count on.^(OLD 2012)^(Wiktionary)

+ # ''sibi fidere'': to be self-confident.^(OLD 2012)

+

+ ==Word family==

+ * [[cōnfīdō]]

+ * [[diffīdō]]

+ * [[fīdentia]]

+ * [[fidēs]]

+ * [[fīdus]]

+ * [[foedus]]

+ * [[perfīdēns]]

+ * [[praefīdens]]

+

+ ==Related words==

+ * [[fidēlis]]

+ * [[en|federal]]

+

+ ==Usage notes==

+ Döderlein distinguishes ''fidere'', trust in someone's strength or help, from ''credere'', belief in someone's good intentions.^(Döderlein 1874)

+

+ ==References==

+ {{reflist}}