Emrys is the Welsh form of the Latin Ambrosius, meaning immortal or enduring, a name tied in legend to a prophetic figure who influenced the Arthurian tradition. It suggests permanence -- something that outlasts its immediate moment rather than fading with circumstance.
The Part of Fortune with ill planets in the fourth, ninth, or tenth houses, denote death to the sick. - William Lilly (1602.-1681.)