Greek word

dikaíōs

δικαίως

What it means

equitably

Where it comes from

adverb from díkaios (δίκαιος)

How the King James translates it

justly2
righteously2
righteousness1

Every place it appears 5

Luke23:41

1 Corinthians15:34

1 Thessalonians2:10

Titus2:12

1 Peter2:23