tonitrus

Latin

Tonitrus est strepitus, quem fulgur effert.

Alternative forms

• tonitruum

Etymology

For unattested *tonitus, from tonō (“I thunder”) +‎ -tus, with insertion of -r- after fulgetrum (“lightning”).

Pronunciation

• (Classical Latin) IPA^(key): /ˈto.ni.trus/, [ˈt̪ɔnɪt̪rʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈto.ni.trus/, [ˈt̪ɔːnit̪rus]

Noun

tonitrus m (genitive tonitrūs); fourth declension

1. thunder

Declension

Fourth-declension noun.

Case	Singular	Plural
Nominative	tonitrus	tonitrūs
Genitive	tonitrūs	tonitruum
Dative	tonitruī	tonitribus
Accusative	tonitrum	tonitrūs
Ablative	tonitrū	tonitribus
Vocative	tonitrus	tonitrūs

Related terms

• tonitruālis

Descendants

• Franco-Provençal: tonêrro
• French: tonnerre
• Galician: estrondo
• Old Occitan: toneire, tonedre, troneire
• Old French: tuneire
• Portuguese: estrondo, tonítruo
• Romanian: tunet
• Spanish: estruendo, tronido

References

• “tonitrus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “tonitrus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• tonitrus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • the heavens are shaken by the thunder: caelum tonitru contremit