砥砺
dǐ​lì

to hone

dǐ​lì to hone · to encourage
  1. 砥 dǐ
    to hone
    (bound form) to temper oneself or improve one's conduct; to practice self-cultivation
  2. 砺 礪 lì
    to temper oneself
    (bound form) to discipline, cultivate, or refine oneself; to steel oneself

dǐ​lì whetstone
  1. 砥 dǐ
    whetstone
    (bound form) a fine-grained whetstone or grindstone used for sharpening blades
  2. 砺 礪 lì
    grindstone
    (bound form) a coarse grindstone or whetstone