συμβουλεύωsymbouleúō

Same root

• σύνsýn · G4862with or together (but much closer than G3326 (μετά) or G3844 (παρά)), i.e. by association, companionship, process, resemblance, possession, instrumentality, addition, etc.
• βουλεύωbouleúō · G1011to advise, i.e. (reflexively) deliberate, or (by implication) resolve

Where it appears

Appears 4 times in the Bible.

• Matthew 26:4 plotting how to capture Jesus secretly and kill him.
• John 18:14 Caiaphas was the one who had told the other Jewish leaders, “It’s better that one man should die for the people.”
• Acts 9:23 After a while some of the Jews plotted together to kill him.
• Revelation 3:18 So I advise you to buy gold from me—gold that has been purified by fire. Then you will be rich. Also buy white garments from me so you will not be shamed by your nakedness, and ointment for your eyes so you will be able to see.