quicken

(verb) move faster. Synonyms: accelerate, speed up, speed. Example: "The car accelerated."

(verb) make keen or more acute. Synonyms: whet. Example: "Whet my appetite."

(verb) give life or energy to. Synonyms: invigorate. Example: "The cold water invigorated him."

(verb) show signs of life. Example: "The fetus quickened."

(verb) give new life or energy to. Synonyms: animate, recreate, reanimate, revive, renovate, repair, vivify, revivify. Examples: "A hot soup will revive me." "This will renovate my spirits." "This treatment repaired my health."