1. (a.) Obsolescence; an antiquated or old-fashioned word\, expression, or idiom; a word or form of speech no longer in common use.

2. (a.) Antiquity of style or use; obsoleteness.

Pre-Raphaelitism ancient manuscript antiquarianism antique antiquity archaeology archaicism artifact cave painting classicism eolith fossil medievalism mezzolith microlith neolith obsolete obsoletism paleolith petrification petrified forest petrified wood petroglyph plateaulith relic reliquiae remains ruin ruins survival vestige