octodecim

Latin

Alternative forms

Symbol: XVIII

Etymology

From octō (“eight”) + decem (“ten”).

Pronunciation

(Classical) IPA^(key): /okˈtoː.de.kim/, [ɔkˈtoː.dɛ.kĩ]

(Ecclesiastical) IPA^(key): /okˈto.de.t͡ʃim/, [okˈtoː.de.t͡ʃim]

Numeral

octōdecim (indeclinable)

(rare) eighteen; 18
- 1543, Petrus Comestor, Historia Scholastica, III Kings, "De porticu"
  Quarum talis erat compositio: Stylus, vel stipes columnae octodecim habebat cubitos altitudinis
- 1687, Isaac Newton, Philosophiae Naturalis Principia Mathematica, "Axiomata, sive Leges Motus"
  Si corpus Alucretur partes novem vel decem vel undecim vel duodecim, adeoque progrediatur post concursum cum partibus quindecim vel sexdecim vel septendecim vel octodecim.

Usage notes

This form is rare, and is found primarily in bookish post-Classical Latin. The usual word for eighteen in Classical Latin is duodēvīgintī.

Synonyms

duodēvīgintī

References

octodecim in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
octodecim in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
octodecim in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette

单词	octodecim
释义	octodecim Latin Alternative forms Symbol: XVIII Etymology From octō (“eight”) + decem (“ten”). Pronunciation (Classical) IPA^(key): /okˈtoː.de.kim/, [ɔkˈtoː.dɛ.kĩ] (Ecclesiastical) IPA^(key): /okˈto.de.t͡ʃim/, [okˈtoː.de.t͡ʃim] Numeral octōdecim (indeclinable) (rare) eighteen; 18 1543, Petrus Comestor, Historia Scholastica, III Kings, "De porticu" Quarum talis erat compositio: Stylus, vel stipes columnae octodecim habebat cubitos altitudinis 1687, Isaac Newton, Philosophiae Naturalis Principia Mathematica, "Axiomata, sive Leges Motus" Si corpus Alucretur partes novem vel decem vel undecim vel duodecim, adeoque progrediatur post concursum cum partibus quindecim vel sexdecim vel septendecim vel octodecim. Usage notes This form is rare, and is found primarily in bookish post-Classical Latin. The usual word for eighteen in Classical Latin is duodēvīgintī. Synonyms duodēvīgintī See also Appendix:Latin cardinal numbers References octodecim in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press octodecim in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers octodecim in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
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