Webster's Revised Unabridged Dictionary · 1913

Fourteenth

Fourteenth , adjective

[Compare Old English fourtende, fourtethe, Anglo-Saxon feówerteoea.]

1.
Next in order after the thirteenth; as, the fourteenth day of the month.
2.
Making or constituting one of fourteen equal parts into which anything may be divided.

Fourteenth , noun

1.
One of fourteen equal parts into which one whole may be divided; the quotient of a unit divided by fourteen.
2.
(Music) The octave of the seventh.
3.
One next after the thirteenth in a series.