Synonyms and related words :
ancient manuscript, antique, antiquity, archaism, arteriosclerosis, artifact, atherosclerosis, calcification, callusing, case hardening, cave painting, concretion, cornification, crystallization, eolith, firming, fossil, fossilization, granulation, hardening, hornification, induration, lapidification, lithification, mezzolith, microlith, neolith, ossification, paleolith, petrifaction, petrified forest, petrified wood, petroglyph, plateaulith, relic, reliquiae, remains, ruin, ruins, sclerosis, setting, solidification, steeling, stiffening, survival, tempering, toughening, vestige, vitrifaction, vitrification