1) Animate 2) Energize 3) Enliven 4) Exalt 5) Excite 6) Fill with life and energy 7) Give life or energy to 8) Heighten or intensify 9) Inspire 10) Make lively 11) Shake 12) Shake up 13) Stimulate 14) Stir 15) To give life or energy to 16) To give vigor to 17) To heighten or intensify 18) To make lively Found on https://www.crosswordclues.com/clue/invigorate
In·vig'or·ate (-āt) transitive verb [ imperfect & past participle Invigorated ; present participle & verbal noun Invigorating .] [ Prefix in- in + vigor .] To give vigor to; to strengthen; to animate; to give life a... Found on http://www.encyclo.co.uk/webster/I/92