What is the meaning of 返る?

to return, go back

to reverse, turn over

  1. to move in the opposite direction
  2. to interchange front and back

to move in the opposite direction

to interchange front and back

to change color, fade

to renew

to start over

suffixed to the 連用形 (ren'yōkei, stem or continuative form) of a verb:

  1. to [verb] completely
  2. to [verb] over and over or repeatedly

to [verb] completely

to [verb] over and over or repeatedly

Source: wiktionary.org