repress

To hold back or prevent by an act of volition.

To put down or subdue by force.

To end, limit, or restrain, as by intimidation or other action.

To exclude (painful or disturbing memories, for example) automatically or unconsciously from the conscious mind.

To prevent (the transcription of a gene or the synthesis of a protein) by the combination of a protein with an operator gene.

To prevent or limit the synthesis of (a protein).

To take repressive action.

To press back or down effectually; crush; quell; put down; subdue; suppress.