Emtaniy (אֵמְתָנִי) is an adjective describing something of extreme power, terribleness, or enormous size. It appears only once in the Hebrew Bible (Daniel 2:31), in the description of the great statue in Nebuchadnezzar's dream as "awesome" or "terrible" in appearance. This is an Aramaic-influenced Hebrew form.
The word powerfully characterizes earthly kingdoms in their magnificence — the great statue represents successive world empires. Yet the vision's climax is a stone cut "without human hands" (Daniel 2:34) that destroys the statue, teaching that no matter how emtaniy (terrible, awesome) human power appears, God's kingdom alone is eternal. The word reminds believers not to be overwhelmed by worldly might.