suppress

Concise Oxford English Dictionary © 2008 Oxford University Press:
suppress/səˈpres/

▶verb

• 1 forcibly put an end to.

• 2 prevent from being expressed or published.

  ■ Psychoanalysis consciously avoid thinking of (an unpleasant idea or memory).

• 3 prevent or inhibit (a process or phenomenon).

– derivatives
suppressible adjective,
suppression noun,
suppressive adjective,
suppressor noun.

– origin ME: from L. suppress-, supprimere ‘press down’.