What this suffix does
The adjectival suffix -en (distinct from the verbal -en of darken, enlighten) comes from Old English and converts material nouns into adjectives meaning "made of X" or "having the qualities of X". golden = having the qualities of gold (gold + en). wooden = made of wood, with wooden properties. silken = silky, smooth as silk (silk + en). earthen = made of earth or clay (earth + en). ashen = ash-grey, pale as ash (ash + en).