words for the day - let sleeping dogs lie

Verb

let sleeping dogs lie (third-person singular simple present lets sleeping dogs lie, present participle letting sleeping dogs lie, simple past and past participle let sleeping dogs lie)

1. (idiomatic) To leave things as they are; especially, to avoid restarting or rekindling an old argument; to leave disagreements in the past.

   Eventually, they decided it would be best to let sleeping dogs lie and not discuss the matter any further.

     reference= wiktionary