relinquishment (n.)

• abandonment
• abdication
• abeyance
• abjuration
• capitulation
• cease
• cessation
• cession
• close
• closing
• discontinuance
• discontinuation
• forbearance
• forswearing
• recedence
• recession
• renouncement
• renunciation
• resignation
• retirement
• retreat
• shutdown
• stopping
• superannuation
• surcease
• surrender
• suspension
• termination
• waiver
• withdrawal
• yielding