*peuk-

The original idea of the root was:

pricking

It’s the origin of all kinds of words that revolve around the theme of “point”.

• point, pointer
• pointillist
• puncture
• punctual
• punctuation
• appoint
• disappoint

A second group is less focused on the “surface” but rather on the notion of attack

• punch
• punctuate
• pungent, repungant
• poignant
• impugn
• expunge