traiectorium

Latin

Etymology

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

Pronunciation

• (Classical Latin) IPA^(key): /traː.i̯ekˈtoː.ri.um/, [t̪räːi̯ɛkˈt̪oːriʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /tra.jekˈto.ri.um/, [t̪räjekˈt̪ɔːrium]

Noun

trāiectōrium n (genitive trāiectōriī or trāiectōrī); second declension

1. 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.