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one +‎ -th



oneth (not comparable)

  1. (archaic, nonstandard) 'first', or other ordinal derivatives of 'one', such as hundred-and-oneth or minus-oneth
    • Soon after the first law of thermodynamics was postulated in the mid nineteenth century, it was realized how the law presupposed a more elementary law, which we now call the zeroth law ... But scientists soon realized how even the zeroth law was too advanced, since it presupposed a yet more elementary law, which explains why the minus-oneth law had to be formulated. —Paul M. S. Monk, 2008. "Laws and the minus-oneth law of thermodynamics", in Physical chemistry: understanding our chemical world, p. 8.
    • (see table 9.1 with row numbers four, ten, and sixteen terminating respectively at the eleventh, twenty-ninth and forty-oneth place) —A. R. Rajwade, 2001. Convex polyhedra with regularity conditions and Hilbert's third problem‎, p. 72.
  2. (Can we verify(+) this sense?) (technical) to form mathematic terms like (k+1)th. Used purely in math books.


oneth (plural oneths)

  1. (in compounds with twenty-, thirty-, forty-, etc.) A fractional part of an integer ending in one
    • about twenty thirty-oneths in value of such sales being made as hereinafter mentioned to a syndicate of persons in the United Kingdom, about seven thirty-oneths to residents in the United States, and about four thirty-oneths to residents in other European countries and the colonies. —"Brooke & Co. (Limited) v. Commissioners of Inland Revenue". In The Weekly Reporter, vol. XLIV, p. 671, August 15, 1896. Supreme Court of Judicature, House of Lords, London.


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