Greek core word #19 · preposition · 913 times in the New Testament

ἐκ

ek

ἐκ + genitive — out of, from

“out of, from” (source, origin, separation); also “by means of, because of”.
Before a vowel it becomes ἐξ (ἐξ αὐτοῦ, ἐξ ὕψους).

There is no table of forms for this word (preposition).

Where you meet it

First met in passage 9, Mark 1:29.

Explained in the notes of 4 passages:

From Appendix B of the Greek and Latin with Jerome study companion · PDF page 222 · open the PDF here