ninth

• nineth (misspelling)

From Middle English nynthe, nynte, from Old English niġoþa, from Proto-Germanic *newundô; the -n- was reinserted by analogy with nine. Equivalent to nine +‎ -th (ordinal suffix).

• (UK, General American) enPR: nīnth, IPA^(key): /naɪnθ/

• Audio (US):

  (file)

• Rhymes: -aɪnθ

ninth (not comparable)

1. The ordinal form of the number nine.
   • 2019 May 29, Amy Harmon, “Which Box Do You Check? Some States Are Offering a Nonbinary Option”, in The New York Times‎^[1], archived from the original on 8 June 2019:

     Ever since El Martinez started asking to be called by the gender-neutral pronouns “they/them” in the ninth grade, they have fielded skepticism in a variety of forms and from a multitude of sources about what it means to identify as nonbinary.

   • 2025 February 22, “Who is Alexis Wilkins? FBI director Kash Patel takes oath in girlfriend's presence”, in The Hindustan Times‎^[2], archived from the original on 22 February 2025:

     Kash Patel, born to Gujarati parents in New York in 1980, was sworn in as the ninth director of the Federal Bureau of Investigation on Friday, in the presence of his girlfriend Alexis Wilkins and his family.

• 9th, IXth, (in names of monarchs and popes) IX

ninth (plural ninths)

1. The person or thing in the ninth position.
2. One of nine equal parts of a whole.
3. (music) The compound interval between any tone and the tone represented on the ninth degree of the staff above it, as between one of the scale and two of the octave above; the octave of the second, consisting of 13 or 14 semitones (called minor and major ninth).

ninth (third-person singular simple present ninths, present participle ninthing, simple past and past participle ninthed)

1. To lose a ninth.
   • 1973, Herakles on Thasos‎^[3], page 79:

     οὐ[δ̓] ὲνατεὐεται, should be translated “a tithe (offering or fee) is not given (or paid)”, “no tithing” (literally, “a ninth is not given”, “no ninth-ing”, if I may coin such a word).

   • 2010, Religion and Reconciliation in Greek Cities: The Sacred Laws of Selinus and Cyrene‎^[4], page 161:

     A yearling "is ninthed" for Semele on Myconos (LSCG 96.23–24); the victim "is not ninthed" for Heracles Thasios

2. To divide by nine.
   • 2014, Contributions to Survey Sampling and Applied Statistics: Papers in Honor of H.O Hartley‎^[5]:

     THE NINTHER-MEAN COMBINATION When data are only a little worse than usual, so far as wild and straggling values are concerned, we can do well enough by taking means of the results of ninthing.