appoint, be, conduct, make, ordain, set

Concise Bible Dictionary:

In the New Testament there are ten words translated “ordain.” The passages that might seem to have some reference to the impartation of a sacerdotal supremacy are:
1. Christ ordained his twelve apostles (Mark 3:1414And he ordained twelve, that they should be with him, and that he might send them forth to preach, (Mark 3:14)). Here the word is ποιέω, “to do, make.”

Strong’s Dictionary of Greek Words:

Greek:
καθίστημι
Transliteration:
kathistemi
Phonic:
kath-is’-tay-mee
Meaning:
from 2596 and 2476; to place down (permanently), i.e. (figuratively) to designate, constitute, convoy
KJV Usage:
appoint, be, conduct, make, ordain, set