infidelis Latin · revision 8186
16 Oct 2026, 15:35 by bogdan “New Latin entry (sources: de Vaan, OLD, Lewis & Short, TLL...)” current version
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+ {{infobox|confidence=established|formation=derivation|attested=Plautus|origins=la fidēs}}
+
+ ==Pronunciation==
+ * IPA (Classical): [ĩː.fɪˈdeː.lɪs]^(Wiktionary)
+ * IPA (Ecclesiastical): [iɱ.fiˈdɛː.lis]^(Wiktionary)
+
+ ==Forms==
+ '''īnfidēlis''' (neuter īnfidēle, comparative īnfidēlior, adverb īnfidēliter); third-declension two-termination adjective^(Wiktionary)
+
+ ==Etymology==
+ It is from [[in-]] “not” and [[fidēlis]] “faithful”.^(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 not keeping faith, treacherous, disloyal.^(OLD 2012) Döderlein explains that ''fīdus'' is trustworthy by nature, ''fidēlis'' faithful as a moral quality.^(Döderlein 1874)
+
+ In Late Latin it came to mean unbelieving, and Ecclesiastical Latin uses it for unfaithful, unbelieving.^(Etymonline)^(Stelten 1995) Medieval Latin used it for disloyal, guilty of treason, and untrustworthy.^(Niermeyer 1976) British Medieval Latin used it of the disloyal, as Alcuin, who says he was never unfaithful to King Offa.^(DMLBS) Through French ''infidèle'' it gave [[en|infidel]] in the mid-15th century, an adherent of a religion opposed to Christianity.^(Wiktionary)^(Etymonline)
+
+ ==Timeline==
+ * c. 250–184 BC – Plautus uses it.^(Köbler 2010)
+ * c. 796 – Alcuin uses it of disloyalty.^(DMLBS)
+ * mid-15th century – English ''infidel'' is recorded.^(Etymonline)
+
+ ==Meanings==
+ ===Adjective===
+ # Faithless, treacherous, [[m|en|disloyal]].^(OLD 2012)
+ # ''(Ecclesiastical Latin)'' Unbelieving; as a noun, an [[m|en|infidel]].^(Stelten 1995)^(Etymonline)
+
+ ==Word family==
+ * [[īnfidēlitās]]
+
+ ==Related words==
+ * [[fidēlis]]
+ * [[fidēs]]
+ * [[en|infidel]]
+
+ ==Usage notes==
+ Döderlein distinguishes [[fīdus]] from [[fidēlis]].^(Döderlein 1874)
+
+ ==References==
+ {{reflist}}