προσαπειλέω G4324
prosapeiléō · pros-ap-i-leh'-o · Verb
from πρός and ἀπειλέω; to menace additionally:--i.e. threaten further.
1 Occurrence in the King James Bible
Acts 4:21So when they had further threatened them, they let them go, finding nothing how they might punish them, because of the people: for all men glorified God for that which was done.