The Collaborative International Dictionary of English v.0.48:

My \My\ (m[imac]), a. & poss. pron. [OE. mi, fr. min. See
   Mine, and cf., for loss of n, A, a., An, a.]
   Of or belonging to me; -- used always attributively; as, my
   body; my book; -- mine is used in the predicate; as, the book
   is mine. See Mine.
   [1913 Webster]

The Free On-line Dictionary of Computing (30 December 2018):

my

    The country code for Malaysia.

   (1999-01-27)