yada, “to know, to teach,” strong’s H3045

First occurrence

And the serpent said to the woman: “You shall not surely die; for God knows that in the day you eat of it, then your eyes shall be opened, and you shall be as God, knowing good and evil.” Gen 3:4-5

Original Hebrew

Strong’s H3045 ידע yada, a primitive root, “to know, to teach.” The pictographs are yud + dalet + ayin.

yud י = the closed hand, thus work, throw, worship
dalet ד = the door, thus enter, move, hang
ayin ע = the eye, thus watch, know, shade

The yud as the closed hand depicts the hand of activity, the action of working. (It can also carry a negative connotation in some instances.) The ayin, besides having the meaning of looking or watching, also carries the meaning of knowing or understanding. Even in English today we still say “I see!” when we understand something. Thus it is by doing (yud) that we enter into (dalet) knowing or understanding (ayin).

THE ANCIENT HEBREW LEXICON | INDEX OF HEBREW ROOTS