1. to decay gradually; to crumble or turn to dust through age or neglect
Usage: past tense of ‘molder’

Examples

• The old books moldered in the damp basement for decades.
• Ancient scrolls had moldered away in the forgotten tomb.
• The wooden fence moldered until it finally collapsed.
• Papers moldered in the abandoned office building.
• The fruit moldered in the heat before anyone could eat it.
• Leaves moldered on the forest floor each autumn.