intervene (v.)

• arbitrate
• arrest
• bargain
• break
• check
• countercheck
• crash
• curb
• damp
• dampen
• delay
• detain
• divide
• elapse
• encroach
• entrench
• hinder
• impede
• impinge
• impose
• infiltrate
• infringe
• inhibit
• insinuate
• intercalate
• intercede
• intercept
• interfere
• interject
• interlope
• interlude
• intermediate
• intermit
• interpolate
• interpose
• interrupt
• intrude
• invade
• irrupt
• judge
• meddle
• mediate
• moderate
• negotiate
• obtrude
• oppose
• part
• pass
• pause
• recess
• referee
• represent
• repress
• resist
• restrain
• retard
• sandwich
• scotch
• separate
• sever
• slacken
• snub
• suppress
• trench
• trespass
• umpire