H4397 מֲלְאָךְ (mal-awk')

KJV renderings: ambassador, angel, king, messenger.
Strong's definition: a messenger; specifically, of God, i.e. an angel (also a prophet, priest or teacher)
Derivation: from an unused root meaning to despatch as a deputy;

From James Strong's public-domain dictionaries (H), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.