To let (something) slip originally (1520s) was a reference to hounds on a leash; figurative use from 1540s.Let in, to admit.If you have friends over for dinner and its time to sit at the table, you can say: The food is ready.

Show More Origin of let 1 before 900; Middle English leten, Old English ltan; cognate with Dutch laten, German lassen, Old Norse lta, Gothic ltan; akin to Greek ldeîn to be weary, Latin lassus tired."Girls must play the very deuce with a man if he ever lets them get on his mind he mused.

Usage note Let us is used in all varieties of speech and writing to introduce a suggestion or a request: Let us consider all the facts before deciding.Because let us often sounds overly formal, the contracted form, lets occurs more frequently in colloquial speech and writing: Lets go, Tigers!Examples, cloud A Commodity?