- (transitive) To decay or rot.
- [Time's] gradual touch / Has mouldered into beauty many a tower.
- c.1855: John Brown's body lies a-mouldering in the grave, but his soul goes marching on! — Traditional, John Brown's Body
- 1841, Henry Wadsworth Longfellow, "The Rainy Day", Ballads and Other Poems
- The day is cold, and dark, and dreary
- It rains, and the wind is never weary;
- The vine still clings to the mouldering wall,
- But at every gust the dead leaves fall,
- And the day is dark and dreary.
moulder (plural moulders)
- A person who moulds dough into loaves.
- Anyone who moulds or shapes things.
- A machine used for moulding.