KJV Dictionary Definition: fiftieth
fiftieth
FIF'TIETH, a.
The ordinal of fifty; as the fiftieth part of a foot. This may be used elliptically, as a fiftieth of his goods, part being understood; or in this case, the word may be treated in grammars as a noun, admitting a plural, as two fiftieths.
fifty
FIF'TY, a.
Five tens; five times ten; as fifty men. It may be used as a noun in the plural.
And they sat down by fifties. Mark 6.