Etymologically
← History of bonus

bonus Latin · revision 743

10 Oct 2026, 17:35 by bogdan “New Latin entry (sources: de Vaan, OLD, Lewis & Short, TLL...)” current version

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+ ==Pronunciation==
+ * IPA (Classical): [ˈbɔ.nʊs]^(Wiktionary)
+ * IPA (Ecclesiastical): [ˈbɔː.nus]^(Wiktionary)
+
+ ==Forms==
+ '''bonus''' (feminine bona, neuter bonum, comparative melior, superlative optimus or optumus, adverb bene); first/second-declension adjective^(Wiktionary)
+
+ ==Etymology==
+ It comes from Old Latin [[m|la|duonus]] and earlier [[m|la|duenos]], [[inh|itc-pro|*dweno-|t=good]], whose further origin is uncertain.^(de Vaan 2008)^(Wiktionary) De Vaan tentatively reconstructs [[ine-pro|*duh₂-eno-]];^(de Vaan 2008) other proposals include roots meaning “to do” or “to show favour”,^(Wiktionary)^(Etymonline) and the OLD compares [[sa|दुवस्|tr=dúvas-|t=gift, honour]].^(OLD 2012) The change of /dw/ to /b/ is the same as in [[bellum]] from [[m|la|duellum]].^(Wiktionary)^(Lewis & Short 1879) The adverb [[bene]] and the adjective [[bellus]] “pretty”, originally a diminutive, belong to the same stem.^(de Vaan 2008)
+
+ Within Italic, compare [[xfa|duenom|t=good]].^(de Vaan 2008)
+
+ ==Earliest recorded meaning==
+ The archaic form ''duenos'' appears in the Duenos inscription,^(de Vaan 2008)^(Köbler 2010) which Köbler places between the 7th and the late 3rd century BC, and ''duonus'' occurs in the Carmen Saliare and in Livius Andronicus.^(de Vaan 2008)^(OLD 2012) In Ennius it means [[m|en|good]] at something, as of a “good encourager”.^(OLD 2012)
+
+ ==Semantic evolution==
+ The adjective covered every kind of goodness: skill in a task, moral virtue (''vir bonus''), kindness, and the favour of gods.^(OLD 2012)^(Lewis & Short 1879) In politics ''boni'' were the loyal or conservative citizens, and also men of wealth and standing.^(OLD 2012) It meant sound or reliable of troops and security, genuine of coins, and healthy of the body and mind, and ''bona aetas'' was the prime of life.^(OLD 2012) Many set phrases used it: ''bona fides'' “good faith”, ''bonae artes'' “liberal studies”, ''bono animo esse'' “to be of good cheer”.^(OLD 2012)
+
+ The neuter ''[[bonum]]'' meant a good thing and, in the plural, property.^(OLD 2012)^(Niermeyer 1976) In medieval Latin ''boni homines'' were people qualified to serve as witnesses or assessors in court.^(Niermeyer 1976) English took ''bonus'' as a noun from Stock Exchange slang in 1773.^(Etymonline)
+
+ ==Timeline==
+ * 7th–3rd century BC – The form ''duenos'' appears in the Duenos inscription.^(de Vaan 2008)^(Köbler 2010)
+ * 204–169 BC – Ennius uses it of a good encourager.^(OLD 2012)^(Köbler 2010)
+ * c. 250–184 BC – Plautus contrasts good men and bad.^(OLD 2012)^(Köbler 2010)
+ * 81–43 BC – Cicero uses ''boni'' of the loyal citizens.^(OLD 2012)^(Köbler 2010)
+ * Middle Ages – ''boni homines'' are qualified witnesses or assessors.^(Niermeyer 1976)
+ * 1773 – English borrows it as [[en|bonus]], an extra payment.^(Etymonline)
+
+ ==Meanings==
+ ===Adjective===
+ # [[m|en|good|alt=Good]] at something, competent, skilled.^(OLD 2012)^(Lewis & Short 1879)
+ # Morally good, [[m|en|virtuous]], ''vir bonus'': a good man.^(OLD 2012)^(Lewis & Short 1879)
+ # Kind, gracious; of gods, propitious.^(OLD 2012)
+ # Politically loyal, (plural as noun) the loyalists; men of standing.^(OLD 2012)
+ # Reliable, sound; of coins, genuine.^(OLD 2012)
+ # ''bona fides'': [[m|en|good faith]].^(OLD 2012)
+ # Good of its kind, suitable, effective; of weather, fine.^(OLD 2012)
+ # Healthy, strong, ''bona aetas'': the prime of life.^(OLD 2012)
+ # Pleasant to the senses; pretty.^(OLD 2012)
+ # Favourable, lucky; of omens, auspicious.^(OLD 2012)
+ # (of arguments, advice) Sound, valid.^(OLD 2012)
+ # (of amounts) Considerable.^(OLD 2012)
+ # ''(Medieval Latin)'' ''boni homines'': people qualified as witnesses or assessors.^(Niermeyer 1976)
+
+ ===Noun===
+ # A good or brave man, (plural) the loyal citizens, the upper classes.^(OLD 2012)^(Wiktionary)
+
+ ==Word family==
+ * [[bellus]]
+ * [[benignus]]
+ * [[bonātus]]
+ * [[bonitās]]
+ * [[bonum]]
+ * [[bonuscula]]
+ * [[perbonus]]
+
+ ==Related words==
+ * [[bene]]
+ * [[beō]]
+ * [[en|bonus]]
+ * [[en|bounty]]
+ * [[en|bonanza]]
+
+ ==Usage notes==
+ The comparative ''[[melior]]'' and the superlative ''[[optimus]]'' come from other stems.^(OLD 2012)^(Lewis & Short 1879) The opposite is ''[[malus]]''.^(Georges 1913)
+
+ ==References==
+ {{reflist}}