Etymologically
← History of fidelitas

fidelitas Latin · revision 8396

16 Oct 2026, 16:03 by bogdan “New Latin entry (sources: de Vaan, OLD, Lewis & Short, TLL...)”

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+ {{infobox|confidence=established|formation=derivation|attested=Plautus|origins=la fidēs}}
+
+ ==Pronunciation==
+ * IPA (Classical): [fɪˈdeː.lɪ.taːs]^(Wiktionary)
+ * IPA (Ecclesiastical): [fiˈdɛː.li.tas]^(Wiktionary)
+
+ ==Forms==
+ '''fidēlitās''' ''f'' (genitive fidēlitātis); third declension^(Wiktionary)
+
+ ==Etymology==
+ It is from [[fidēlis]] “faithful”, from [[fidēs]] “faith”, with the suffix [[-tās]].^(OLD 2012)^(Wiktionary)^(Etymonline)
+
+ ==Earliest recorded meaning==
+ Köbler's first source is Plautus, whom he dates c. 250–184 BC.^(Köbler 2010)
+
+ ==Semantic evolution==
+ It meant faithfulness, loyalty, fidelity.^(OLD 2012) Döderlein explains that ''fidēs'' and ''fidēlitās'' are the faithfulness a man keeps towards others, ''fidēs'' in the wider sense.^(Döderlein 1874)
+
+ In Ecclesiastical Latin it meant faithfulness, fidelity, trustworthiness.^(Stelten 1995) Medieval Latin used it for the allegiance owed by subjects to the king and by vassals to their lord, and ''iūs fidēlitātis'' was the oath of fealty.^(Niermeyer 1976)^(Köbler 2010) British Medieval Latin used it for fidelity, as a title, and for a pledge.^(DMLBS) It survives in Italian ''fedeltà'' and Spanish ''fieldad'', and was borrowed again as French ''fidélité'', which gave [[en|fidelity]] in the early 15th century.^(Wiktionary)^(Etymonline)
+
+ ==Timeline==
+ * c. 250–184 BC – Plautus uses it.^(Köbler 2010)
+ * early 15th century – English ''fidelity'' is recorded.^(Etymonline)
+
+ ==Meanings==
+ ===Noun===
+ # Faithfulness, loyalty, [[m|en|fidelity]].^(OLD 2012)
+ # ''(Medieval Latin)'' [[m|en|Allegiance]], fealty.^(Niermeyer 1976)
+
+ ==Related words==
+ * [[fidēlis]]
+ * [[fidēs]]
+ * [[fīdō]]
+ * [[fīdus]]
+ * [[en|fidelity]]
+
+ ==Usage notes==
+ Döderlein distinguishes it from [[fidēs]].^(Döderlein 1874)
+
+ ==References==
+ {{reflist}}