The first occurrence.
Even by the God of your father, who shall help you; and by the Almighty, who shall bless you with blessings of heaven above, blessings of the deep beneath, blessings of the breasts, and of the womb. Gen 49:25
The primitive root.
Strong’s H5826 עזר azar, a primitive root meaning, “to help, aid, succor.” The 3-letter root is ayin + zayin + resh.
ayin ע = eye, thus watch, know, shade
zayin ז = mattock, thus tool, food, cut, nourish
resh ר = head of man, thus head, first, top, beginning, man
The story: To watch over (ayin) what is necessary (zayin, as a tool is used to accomplish a needed end) for the man (resh).