fortieth

from WordNet (r) 3.0 (2006)

fortieth
    adj 1: the ordinal number of forty in counting order [syn:
           {fortieth}, {40th}]
    n 1: position 40 in a countable series of things

from The Collaborative International Dictionary of English v.0.48

Fortieth \For"ti*eth\, a. [AS. fe['o]wertigo?a. See {Forty}.]
   1. Following the thirty-ninth, or preceded by thirty-nine
      units, things, or parts.
      [1913 Webster]

   2. Constituting one of forty equal parts into which anything
      is divided.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Fortieth \For"ti*eth\, n.
   One of forty equal parts into which one whole is divided; the
   quotient of a unit divided by forty; one next in order after
   the thirty-ninth.
   [1913 Webster]

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