Etymologically
← History of fas

fas Latin · revision 5523

16 Oct 2026, 02:50 by bogdan “New Latin entry (sources: de Vaan, OLD, Lewis & Short, TLL...)” current version

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+ {{infobox|confidence=probable|formation=inherited|attested=Naevius|origins=ine-pro *bʰeh₂-}}
+
+ ==Pronunciation==
+ * IPA (Classical): [ˈfaːs]^(Wiktionary)
+ * IPA (Ecclesiastical): [ˈfas]^(Wiktionary)
+
+ ==Forms==
+ '''fās''' ''n sg'' (indeclinable, no genitive)^(Wiktionary)
+
+ ==Etymology==
+ It is [[inh|itc-pro|*fās]], probably [[inh|ine-pro|*bʰéh₂-os|t=saying, utterance]], from the root [[ine-pro|*bʰeh₂-|t=to speak]] of [[for|alt=fārī]].^(de Vaan 2008)^(Wiktionary) De Vaan thinks the noun first survived only in the phrase “the saying exists”, hence “it is right”, and that [[fāstus]] and [[fānum]] were derived from it.^(de Vaan 2008) The OLD calls the connection with ''fārī'' doubtful.^(OLD 2012)
+
+ ==Earliest recorded meaning==
+ De Vaan dates it from Naevius.^(de Vaan 2008) Köbler dates Naevius c. 235–200 BC.^(Köbler 2010)
+
+ ==Semantic evolution==
+ It was what is right or permitted by divine law, the will of heaven, and then what is morally right or proper.^(OLD 2012) It was usually a predicate, ''fās est'' “it is right, it is allowed”, and was often opposed to [[nefās]].^(OLD 2012) Cicero speaks of destroying all ''iūs ac fās'', human and divine law.^(Gaffiot 2016) Isidore defines it as divine law, against [[iūs]], human law: to cross another's field is ''fās'', but not ''iūs''.^(Isidore)
+
+ Medieval Latin kept it in the phrase ''contrā iūs fāsque''.^(DMLBS) Its negative ''nefās'' gave ''nefārius'', the source of [[en|nefarious]] about 1600.^(Etymonline)
+
+ ==Timeline==
+ * c. 235–200 BC – Naevius uses it.^(de Vaan 2008)^(Köbler 2010)
+ * 81–43 BC – Cicero speaks of destroying all ''iūs ac fās''.^(Gaffiot 2016)^(Köbler 2010)
+ * c. 560–636 AD – Isidore contrasts ''fās'' with ''iūs''.^(Isidore)^(Köbler 2010)
+ * c. 1600 – English ''nefarious'' is recorded.^(Etymonline)
+
+ ==Meanings==
+ ===Noun===
+ # What is right by [[m|en|divine]] [[m|en|law]].^(OLD 2012)
+ # The will of heaven.^(OLD 2012)
+ # What is morally right, proper, ''fās est'', it is allowed.^(OLD 2012)
+ # A sense of right; a right, a claim.^(OLD 2012)
+
+ ==Word family==
+ * [[fānum]]
+ * [[fāstus]]
+ * [[nefās]]
+
+ ==Related words==
+ * [[for]]
+ * [[en|nefarious]]
+
+ ==Usage notes==
+ It is indeclinable and used almost only in the nominative and accusative.^(OLD 2012)^(Wiktionary)
+
+ ==References==
+ {{reflist}}