眠ってる犬は眠らせておけ。

眠ってる犬は眠らせておけ。

Let a sleeping dog lie.

眠(ねむ)ってる犬(いぬ)は眠(ねむ)らせておけ。

Nemutteru inu wa nemuraseteoke.

眠る (ねむる、ねぶる)

to sleep (not necessarily lying down); to die; to close one's eyes

犬 (いぬ)

dog (Canis (lupus) familiaris); snoop (i.e. a detective, a spy, etc.); loser; asshole; counterfeit; inferior; useless; wasteful

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

Readings: ミン、ねむ.る、ねむ.い

Meanings: sleep, die, sleepy

Readings: ケン、いぬ、いぬ-

Meaning: dog