Strong's #2277: eto (pronounced ay'-to)

third person singular imperative of 1510; let him (or it) be:--let ... be.

Thayer's Greek Lexicon:

̓́

ētō

1) let him (it) be

Part of Speech: verb

Relation: third person singular imperative of G1510

Usage:

This word is used 2 times:

 

1 Corinthians 16:22: "Lord Jesus Christ, let him be Anathema Maranatha."
James 5:12: "but let your yea be yea; and your nay,"