力付く
  力づく
  ちからづく
  Godan verb with `ku' ending
  to recover one's strength
  to recover one's spirit
  to revive
  to be refreshed
  to be invigorated
  to be encouraged
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  力ずく
  力尽く
  力尽
  irregular okurigana usage
  ちからずく
  ちからづく
  力尽く
  力尽
  noun (common) (futsuumeishi)
  nouns which may take the genitive case particle `no'
  (brute) force
  with all one's might
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