prolong (v.)

• adjourn
• continue
• dawdle
• defer
• delay
• draw
• elongate
• endure
• extend
• hold
• keep
• last
• lengthen
• maintain
• perpetuate
• persist
• pigeonhole
• postpone
• preserve
• procrastinate
• produce
• prorogue
• protract
• pull
• recess
• reserve
• retain
• shelve
• stay
• strain
• stretch
• suspend
• sustain
• table
• tauten
• temporize
• tense
• tighten
• waive