countersank

• past tense form

  past tense

  Used to describe completed actions or previous habitual actions.

  of countersink.
  countersink

  verb (used with object)

  to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt, etc.

More Suggestions

• counterman
• countermand
• countermark
• counterpane
• counterscarp
• countershaft
• counterstain
• counterstamp
• counteract