\Four"teenth`\, a. [Cf. OE. fourtende, fourtethe, AS.
fe['o]werteo[eth]a.]
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 derived.

\Four"teenth`\, n.
1. One of fourteen equal parts into which one whole may be
   divided; the quotient of a unit divided by fourteen; one
   next after the thirteenth.
2. (Mus.) The octave of the seventh.