v. 25B6; verb
we hastened back home : HURRY, rush, dash, race, fly, shoot; scurry, scramble, dart, bolt, sprint, run, gallop; go fast, go quickly, go like lightning, go hell for leather; informal tear, hare, pelt, scoot, zip, zoom, belt, hotfoot it, leg it; Brit. informal bomb, bucket; N. Amer. informal hightail, barrel; dated make haste.
chemicals can hasten ageing : SPEED UP, accelerate, quicken, precipitate, advance, hurry on, step up, spur on; facilitate, aid, assist, boost.
dawdle, delay.