一いちからやり直なおす

expression, godan verb (-su)

start over from scratch; do it all over again; wipe the slate clean

Used when abandoning previous progress and beginning again from the very beginning, often with a sense of resetting or redoing completely.

• 計けい画かくが失しっ敗ぱいしたので、一いちからやり直なおすことにした。

  Since the plan failed, we decided to start over from scratch.

• 間ま違ちがいが多おおすぎて、書しょ類るいを一いちからやり直なおさなければならなかった。

  There were too many mistakes, so I had to redo the documents from the beginning.