1. Of high spiritual, moral, or intellectual worth.
2. So awe-inspiringly beautiful as to seem almost heavenly.
3. Etymology: borrowed from Latin sublimis, "lofty, exalted".

This was a compound adjective formed from the prefix sub-, "under" and probably limen, "lintel" (horizontal beam that supports the weight of the wall above a window or door), "threshold"; a relative of limes, "boundary", from which English acquired "limit".