noun
anvil
AN-vil/ˈænvɪl/
A heavy iron or steel block on which metal is shaped.
A partly curved metal bar rests across the anvil's flat working face.

Etymology
Old English anfilt named the metalworker’s block. Its earlier formation apparently combined meanings like “on” and “hit,” fitting the surface on which metal is struck into shape.
In context
began hammering it upon the anvil— the red mass sending off the sparks
More examples
- Repeated hammer blows ring against the anvil.
- The workshop contains two steel anvils.
- She steadies the metal against the flat anvil.
Forms
anvil · anvils
Similar words
- forge
- A hearth for heating metal rather than the shaping block.