Shirabe
覆水 盆 に 返らず
English jmdict
1
expressions (phrases proverb what's done is done;it is no use crying over spilt milk;spilt water won't go back into its tray
諺に、覆水盆に返らずと言う。
The proverb says that what is done cannot be undone.
Other forms 覆水盆に帰らず 【ふくすいぼんにかえらず】 (word containing irregular kanji usage)

返るかえる

Common Godan Intransitive
English jmdict
1
Godan verb with 'ru' endingintransitive verb to return;to come back;to go back
esp. 返る
のろいはのろい主に返る。
Curses, like chickens, come home to roost.
2
Godan verb with 'ru' endingintransitive verb to turn over
See also: 裏返る (うらがえる)
3
Godan verb with 'ru' ending to become extremely;to become completely
after the -masu stem of a verb; esp. 返る
Other forms 反る 【かえる】