What is the meaning of hasten?

verb

• Act or move at high speed.
  • usage: "We have to rush"; "hurry-it's late"
  • synonyms: rush, hurry, look sharp, festinate
• Move fast.
  • usage: "He rushed down the hall to receive his guests"; "The cars raced down the street"
  • synonyms: rush, hotfoot, hie, speed, race, pelt along, rush along, cannonball along, bucket along, belt along, step on it
• Speed up the progress of; facilitate.
  • usage: "This should expedite the process"
  • synonyms: expedite
• Cause to occur rapidly.
  • usage: "the infection precipitated a high fever and allergic reactions"
  • synonyms: induce, stimulate, rush