Latin words first recorded in the 4th century

It is formed from Latin aggregō + -tiō, a noun of action from the verb meaning “to add to a flock, gather together”. Conte calls it a Late Latin word.

It is from Latin alter (“other”) + -ō, “to make other”.

It is from Ancient Greek ἀνατομή (anatomḗ, “dissection”) with the Latin suffix -ia, or, as Lewis & Short have it, the late Greek form ⟨anatomia⟩ itself. The Greek noun is from ἀνατέμνω (anatémnō…

It is from Latin anxius (“anxious”) + -ōsus.

It is formed from Latin appropriō + -tiō.

It is from Latin ad- + proprius (“one's own”), a verb meaning “to make one's own”.

It is from Latin aucella (“little bird”), made masculine; that is a contraction of avicella, a diminutive of avicula, itself a diminutive of avis (“bird”). Niermeyer and Köbler instead derive it…

It is from Latin augmentō (“to increase”) + -tiō; the TLL and Köbler connect it directly with the noun augmentum (“increase”). Both go back to augeō (“to increase”), from Proto-Indo-European *h₂eug-…

It is formed from Latin benefaciō (“to do good, confer a benefit”) + -tor.

It is borrowed from Ancient Greek βύρσα (búrsa, “hide, skin”). Köbler compares βερρός (berrós, “thick, hairy”) and calls the further origin unclear, perhaps from Proto-Indo-European *bʰer- (“to…

It is from Latin cancellō + -tiō, from the verb for marking out in a lattice. Köbler refers it to cancellus (“lattice”).

It is borrowed from Ancient Greek κατάλυσις (katálusis, “dissolution, ending”). Köbler derives the Greek noun from καταλύειν (katalúein, “to destroy, bring to an end”).

It is borrowed from Ancient Greek κατάρρους (katárrhous, “catarrh”), a noun of action from καταρρέω (katarrhéō, “to flow down”). Wiktionary gives the uncontracted Greek form κατάρροος (katárrhoos).

It is formed from Latin cavus (“hollow”) + -tās in Late Latin.

It is from Latin caedō (“to cut”), ultimately from its participial stem ⟨cīs-⟩ as seen in compounds such as incīdō.

It is formed from Latin condēnsō (“to make dense, thicken”) + -tiō. The verb belongs with condēnsus (“dense, tightly packed”) and dēnsus (“thick”), which goes back to Proto-Italic *d(e)nso- (with a…

It is formed from Latin cōnfluēns + -ia, from the present participle of cōnfluō (“to flow or run together”). The simple verb fluō goes back to Proto-Italic *flow-e/o- and Proto-Indo-European…

It is from Latin cōnsuētūdō (“custom, habit”) + -ārius. The noun belongs with cōnsuēscō (“to become accustomed”), one of the compounds of suēscō, which de Vaan regards as older than the simple verb.

The TLL takes it to be from Latin contāminō (“to pollute, spoil”), and Köbler connects it with contingō (“to touch”). De Vaan explains the verb itself as built on an unattested noun meaning…

It is formed from Latin contrādictor + -ius, from contrādīcō (“to speak against”).

It is from Latin culmen (“top, summit”). De Vaan treats culmen under columen, which goes back to Proto-Italic *kelamen- and Proto-Indo-European *kelH-men- (“top, summit”).

It is from Latin decorō (“to adorn, decorate”) + -tiō, itself from decus (“ornament, honour”).

It is from Latin dēserō (“to abandon”), formed on its past participle dēsertus; Etymonline calls it a frequentative.

It is from Latin dēstruō (“to pull down, destroy”) + -īvus.

It is formed from Latin dictō (“to dictate”) + -tus. dictō is itself formed from dīcō (“to say”), which goes back to Proto-Italic *deik-e/o- (“to say”) and Proto-Indo-European *deiḱ-e/o- (“to show”).

It is from Latin dis- + vergō (“to slope down, incline”). vergō goes back to Proto-Italic *werg-e/o- and Proto-Indo-European *h₂uerg- (“to turn”).

It is from Latin domesticus, in the sense of an officer of the imperial household, and means the rank of these officers. The adjective, “of the household”, is itself derived from domus (“house”).

The origin is unclear. The DMLBS refers it to Late Latin intibum (“endive, chicory”), and the MLW compares Ancient Greek ἐντύβιον (entúbion). Etymonline gives the Latin source as intibus.

It is from Latin exigō (“to drive out; to weigh, test”) + -ium, built on the unweakened stem ⟨exag-⟩, as if from a simple compound of agō without the vowel change of exigō. The TLL and Lewis & Short…

It is formed from Latin excitō + -bilis. The verb is formed from ex- and citō (“to set in motion”).

It is from Latin expandō (“to spread out”) + -tiō, an action noun formed on the participle ⟨expānsus⟩.

It is formed from Latin explānō (“to make plain, explain”) + -tōrius. The verb explānō is derived from plānus (“level, flat”), which de Vaan traces to Proto-Indo-European *pl(e)h₂-nó- (“flattened”).

It is from Latin facilis (“easy”) + -ter. Lewis & Short treat it with facul, facile and faciliter as one of the four adverbs of the adjective.

It is from Latin fīdō (“to trust”) + -men.

It is from Latin foederō (“to make a treaty; to unite”) + -tiō, and foederō comes from foedus (“treaty, league”).

It is formed from Latin fortificō (“to strengthen, fortify”) + -tiō, a verb made from fortis (“strong”) and faciō (“to make”).

It is from Latin grammatica + -ālis, the TLL deriving it from grammaticus or grammatica. Grammaticus is from Ancient Greek γραμματικός (grammatikós).

It is from Latin habitus (“condition, bearing, dress”). Its base was originally the past participle of habeō (“to have, hold”).

It is a Germanic word: Wiktionary takes it borrowed from Frankish *harpā (“harp”), and Köbler traces it to Proto-Germanic *harpō. Cognate with German Harfe and Old English hearpe. Lewis & Short and…

It is from Latin idea (“idea, form”) + -ālis. The noun goes back to Ancient Greek ἰδέα (idéā, “form, idea”), and Etymonline takes the adjective from it in the Platonic sense.

It is from Latin impleō (“to fill up”) + -mentum.

It is formed from Latin in- (“not”) + cessāns (“ceasing”), the present participle of cessō (“to cease, hold back”).

It is from Latin in- + corrigō (“to correct”), with the adjective suffix -bilis. The TLL compares the rarer incorrectibilis.

It is formed from Latin innovō (“to renew”) + -tor.

It is from Latin in- + signō (“to mark”), beside īnsigniō.

It is from Latin magnēs (“magnet”) + -icus. Köbler compares Ancient Greek Μαγνητικός (Magnētikós, “Magnesian”). The magnet, ⟨magnēs⟩, was the Magnesian stone, named after Μαγνησία (Magnēsía).

It is from Latin mēnsūra (“measure”), which is formed from mētior (“to measure”) with the suffix -tūra. The chain goes back to Proto-Indo-European *meh₁-.

It is formed from Latin pāscō (“to feed, graze”) + -tūra, a Late Latin word; Wiktionary derives it from the deponent pāscor (“to graze”). The TLL relates it to the noun pāstus (“pasture, food”).

It is borrowed from Ancient Greek περιφέρεια (periphéreia, “circumference”), which comes from περιφερής (peripherḗs, “moving round, revolving”), from περιφέρω (periphérō, “to carry round”). Köbler…

It is borrowed from Ancient Greek φαρμακευτικός (pharmakeutikós, “concerning drugs”), from φάρμακον (phármakon, “remedy, drug, charm”).

It is from Latin plānus (“flat, level”), formed with the suffix -āris.

It is from Latin plānus (“flat, level”).

It is borrowed from Ancient Greek πλεονασμός (pleonasmós), first found in Late Latin, from πλεονάζω (pleonázō, “to be more than enough, to add superfluously”), from πλέον (pléon, “more”).

It is borrowed from Ancient Greek πολύγωνον (polúgōnon, “polygon”), the noun use of the neuter of the adjective πολύγωνος (polúgōnos, “many-angled”), from πολύς (polús, “many”) and γωνία (gōnía…

It is from Latin praeambulō (“to walk before”), formed like funambulus with the second part made to look like a word in -ulus.

It is from Latin praecaveō (“to guard against beforehand”) + -tiō.

It is from Latin praedīcō (“to foretell”) + -īvus, built on the participle ⟨praedictus⟩.

It is from Latin prae (“before”) + servō (“to watch, keep”).

It is borrowed from Ancient Greek πρίσμα (prísma, “prism; something sawn”). The Greek noun comes from πρίζειν (prízein, “to saw”). Etymonline notes that Euclid used it for the geometrical figure…

It is borrowed from Ancient Greek προβληματικός (problēmatikós), from πρόβλημα (próblēma, “problem”).