殚 (w)

(dān) entirely; to exhaust

殚力 (w)

(dānlì) to strive; endeavor

殚心 (w)

(dānxīn) to devote one's entire mind

殚闷 (w)

(dānmèn) to faint; to swoon; to lose consciousness

殚残 (w)

(dāncán) to destroy

殚竭 (w)

(dānjié) to use up; to exhaust

殚精极虑 (w)

(dānjīngjílǜ) to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly; to rack one's brains; to leave no stone unturned

殚精竭虑 (w)

(dānjīngjiélǜ) to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly; to rack one's brains; to leave no stone unturned