G2758–κενόω–kenoō

For if those who are of the law are heirs, faith is made void, and the promise is made of no effect.

κεκένωται kekenōtai “has been made void”

For Christ sent me not to baptize, but to preach the Gospel--not in wisdom of words, so that the cross of Christ wouldn't be made void.

κενωθῇ kenōthēa “may be emptied of power”

But I have used none of these things, and I don't write these things that it may be done so in my case; for I would rather die, than that anyone should make my boasting void.

κενώσει. kenōsei “will make void.”

But I have sent the brothers that our boasting on your behalf may not be in vain in this respect, that, just as I said, you may be prepared,

κενωθῇ kenōthēa “may be made void”

but emptied himself, taking the form of a servant, being made in the likeness of men.

ἐκένωσεν ekenōsen “emptied”