What does kaiper mean in Greek?

Though I might also have confidence in the flesh. If any other man thinketh that he hath whereof he might trust in the flesh, I more:

Though he were a Son, yet learned he obedience by the things which he suffered;

And verily they that are of the sons of Levi, who receive the office of the priesthood, have a commandment to take tithes of the people according to the law, that is, of their brethren, though they come out of the loins of Abraham:

For ye know how that afterward, when he would have inherited the blessing, he was rejected: for he found no place of repentance, though he sought it carefully with tears.

Wherefore I will not be negligent to put you always in remembrance of these things, though ye know them, and be established in the present truth.

The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is.