petrification (n.)

• antique
• antiquity
• archaism
• arteriosclerosis
• artifact
• atherosclerosis
• calcification
• concretion
• crystallization
• eolith
• fossil
• fossilization
• granulation
• hardening
• induration
• neolith
• ossification
• paleolith
• petrifaction
• petroglyph
• relic
• remains
• ruin
• sclerosis
• setting
• solidification
• stiffening
• survival
• tempering
• vestige
• vitrification