(なお)

なおす
suffix
to do ~ over again; to redo ~
1. to do ~ over again; to redo ~
Attaches to the masu-stem of a verb to indicate repeating an action from the beginning, usually to correct or improve the result. The resulting compound conjugates as a godan verb.
もう一度(いちど)やり直(やりなお)そう。
Let's do it over again.
間違(まちが)いがあったので、()(なお)してください。
There was a mistake, so please rewrite it.
計画(けいかく)がうまくいかなかったから、ゼロから(かんが)(なお)必要(ひつよう)がある。
The plan didn't work out, so we need to rethink it from scratch.

FORMATION:

Attaches to the masu-stem (連用形(れんようけい)) of verbs:

  • やる → やり + (なお)す → やり(なお)
  • ()く → ()き + (なお)す → ()(なお)
  • ()る → () + (なお)す → ()(なお)

The compound conjugates as a godan verb ((なお)す).

COMMON COLLOCATIONS:

  • やり(なお)す (to redo)
  • ()(なお)す (to rewrite)
  • ()(なお)す (to review; to reconsider)
  • (つく)(なお)す (to remake)
  • ()(なお)す (to start over from the beginning)
  • (かんが)(なお)す (to reconsider)

USAGE:
Implies that the first attempt was unsatisfactory or needs improvement. Unlike simply repeating an action (もう一度(いちど)する), ~(なお)す carries the nuance of correcting or doing better the second time around.