stave

To break something inwards, often creating a hole or dent (usually 'stave in').

"The impact staved in the boat's hull."

To avert or delay something bad or dangerous (usually 'stave off').

"They worked hard to stave off bankruptcy."

A long, curved strip of wood forming the side of a barrel or cask.

"The cooper replaced a broken stave."

A set of five parallel lines on which musical notes are written.

"She drew a treble clef on the stave."