being arduous; working diligently enduring hardships
engrave, cut fine, chop, hash, mince, time, carving
コク / きざ.む
suffering, trial, worry, hardship, feel bitter, scowl
ク / くる.しい
exertion, endeavour, encourage, strive, make effort, diligent
ベン / つと.める
encourage, be diligent, inspire
レイ / はげ.む