English → Latin
“eighth” in Latin
octāvuseighth; the ordinal number between septimus and nōnus.octānsA measuring instrument, possibly similar to the nautical octant; half a quadrant, an eighth part.sēscū̆nciaOne and a half unciae.; One eighth (of a whole)
Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864
eighth
octavus: Every eighth man, octavus quisque: every eighth month, octavo quoque mense: for the eighth time, octavum (Liv. 6, 36): an eighth (part), octava (with or without pars): a soldier of the eighth legion, octavanus; the eigth month, mensis October (in the Roman year), mensis Augustus (of our year). An eighth, octava (sc. pars, which may be expressed): octans (of a circle; but it was a measuring instrument = 45 degrees, Vitr.): sescuncia (of a whole divided into twelve parts, like the Roman As).
Quick answer
- What is the Latin word for eighth?
- The usual Latin words for “eighth” are octāvus, octāns, sēscū̆ncia. The right choice depends on the sense; see the distinctions below.
Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.