'Officer' in the Bible

Then his officer, Pekah son of Remaliah, conspired against him and struck him down in Samaria at the citadel of the king’s palace —as well as Argob and Arieh. There were 50 Gileadite men with Pekah. He killed Pekahiah and became king in his place.

How then can you drive back a single officer among the least of my master’s servants and trust in Egypt for chariots and for horsemen?