Mighty One of Jacob is unusual because the word ’avir is not often part of a name of God. ’Avir comes from “to soar” or “to flutter” and relates to the Akkadian word for “to be strong,” hence its meaning, “mighty.”
Mighty One of Jacob in Hebrew:
’Avir Ya‘aqov
Strong’s Concordance numbers: 46, 3290
Bible references: Gen. 49:24; Ps. 132:2, 5; Isa. 49:26; 60:16
His bow remained firm,
And his arms were agile,
From the hands of the Mighty One of Jacob
(From there is the Shepherd, the Stone of Israel). (Genesis 49:24)
Similar names for God are Mighty One of Israel, Mighty One God the LORD, and simply, Mighty One.