traiectorium

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Latin

Etymology

From trāiciō (“to transfer, cause to go across”) (past participle stem trāiect-) +‎ -tōrium (suffix forming nouns for tools and instruments).

Pronunciation

(Classical) IPA^(key): /traː.i̯ekˈtoː.ri.um/,
(modern Italianate Ecclesiastical) IPA^(key): /tra.jekˈto.ri.um/,

Noun

trāiectōrium n (genitive trāiectōriī or trāiectōrī); second declension

funnel

Declension

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	trāiectōrium	trāiectōria
Genitive	trāiectōriī trāiectōrī¹	trāiectōriōrum
Dative	trāiectōriō	trāiectōriīs
Accusative	trāiectōrium	trāiectōria
Ablative	trāiectōriō	trāiectōriīs
Vocative	trāiectōrium	trāiectōria

¹Found in older Latin (until the Augustan Age).

Descendants

Galician: treitoira
→ English: trajectory
→ Proto-West Germanic: *trahtārī (see there for further descendants)

Further reading

“traiectorium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
traiectorium in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
traiectorium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

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