What does Mordecai mean?
Mordecai \m(o)-rde-cai, mor-decai\ as a boys' name is of Hebrew origin, and the meaning of Mordecai is "little man". Also possibly "follower of Marduk, a god of the Babylonians". Biblical name. In the Talmud, the name is of Aramaic origin, from "mara dachya" meaning "pure myrrh", the aromatic resin which was used in incense.
Mordecai is a rare given name for men but a very popular surname for both adults and children (#27351 out of 88799, Top 31%). (2000 U.S. Census)
Below is a charted analysis of the popularity of Mordecai and related names. The only prominent varying form of Mordecai (#unlisted) is Mordechai. This boy name reached the top of its popularity in the year 2003 and is now less widespread. (Top 1000 Baby Names Statistics, 2014)