励起 （レイキ） (electrical) excitation

励起状態 （レイキジョウタイ） excited state

精励 （セイレイ） diligence, industry, assiduity, hard work

刻苦精励 （コックセイレイ） being arduous, working diligently enduring hardships, making a strenuous effort

励む （はげむ） to work hard, to try hard, to strive, to endeavour, to endeavor, to devote oneself to, to make an effort, to be zealous

励ます （はげます） to encourage, to cheer on, to cheer (someone) up, to raise (one's voice)