abide, accomplish, X be clearer, confirm, continue, decree, X be dim, endure, X enemy, enjoin, get up, make good, help, hold, (help to) lift up (again), make, X but newly, ordain, perform, pitch, raise (up), rear (up), remain, (a-)rise (up) (again, against), rouse up, set (up), (e-)stablish, (make to) stand (up), stir up, strengthen, succeed, (as-, make) sure(-ly), (be) up(-hold, - rising)

Concise Bible Dictionary:

Paul and Barnabas went to Lystra, Iconium, and Antioch, confirming the souls of the disciples, and exhorting them to continue in the faith. Judas and Silas, messengers from Jerusalem to Antioch, being prophets, exhorted the brethren with many words and confirmed them. Again Paul and Silas went through Syria and Cilicia, confirming the churches (Acts 14:22; Acts 15:32,41). These passages, with Acts 18:23, where the word is translated “strengthen,” are all the places where the word ἐπιστηρίζω occurs. (There is no idea of any ceremonial, like what is now called “Confirmation.”)

Strong’s Dictionary of Hebrew Words:

Transliteration:
quwm
Phonic:
koom
Meaning:
a primitive root; to rise (in various applications, literal, figurative, intensive and causative)
KJV Usage:
abide, accomplish, X be clearer, confirm, continue, decree, X be dim, endure, X enemy, enjoin, get up, make good, help, hold, (help to) lift up (again), make, X but newly, ordain, perform, pitch, raise (up), rear (up), remain, (a-)rise (up) (again, against), rouse up, set (up), (e-)stablish, (make to) stand (up), stir up, strengthen, succeed, (as-, make) sure(-ly), (be) up(-hold, - rising)