Strong's #5020: tartaroo (pronounced tar-tar-o'-o)

from Tartaros (the deepest abyss of Hades); to incarcerate in eternal torment:--cast down to hell.

Thayer's Greek Lexicon:

́

tartaroō

1) the name of the subterranean region, doleful and dark, regarded by the ancient Greeks as the abode of the wicked dead, where they suffer punishment for their evil deeds; it answers to Gehenna of the Jews

2) to thrust down to Tartarus, to hold captive in Tartarus

Part of Speech: verb

Relation: from Tartaros (the deepest abyss of Hell)

Usage:

This word is used 1 times:

 

2 Peter 2:4: "the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved"