Fif"ti*eth (?), a. [AS. fiftigoa. See Fifty.]
1.
Next in order after the forty-ninth; -- the ordinal of fifty.
2.
Consisting of one of fifty equal parts or divisions.
© Webster 1913.
Fif"ti*eth, n.
One of fifty equal parts; the quotient of a unit divided by fifty.
© Webster 1913.