interpose (v.)

• arbitrate
• bargain
• cast
• crash
• encroach
• entrench
• impinge
• impose
• infiltrate
• infringe
• insert
• insinuate
• intercalate
• intercede
• interfere
• interject
• interlope
• intermediate
• interpolate
• intervene
• intrude
• invade
• irrupt
• judge
• meddle
• mediate
• moderate
• negotiate
• obtrude
• push
• referee
• represent
• sandwich
• shove
• throw
• thrust
• toss
• trench
• trespass
• umpire