Possible Clues:

• Ancient remnant hardened in rock
• What one might become, by the look of Medusa
• Really old person, in mean slang
• Antiquated mineral dug from the earth
• Person out of date starts to sense sadness in defeat
• Relic of saints wrapped in thin sheet
• Ancient remains embedded in rock
• Ancient remain preserved in rock
• Something set in stone
• Old person, derogatorily