Source : Webster's Revised Unabridged Dictionary (1913)

Yt \Yt\ ([th][a^]t),
   an old method of printing that (AS. [thorn][ae]t, [eth][ae]t)
   the ``y'' taking the place of the old letter ``thorn''
   ([thorn]). Cf. {Ye}, the.

Source : Free On-Line Dictionary of Computing

yt
     
         The {country code} for Mayotte.
     
        (1999-01-27)