'Blot' in the Bible

Let me alone, that I may destroy them, and blot out their name from under heaven; and I will make of thee a nation mightier and greater than they.

And it shall be, when Jehovah thy God shall have given thee rest from all thine enemies round about, in the land that Jehovah thy God giveth thee for an inheritance to possess it, that thou shalt blot out the remembrance of Amalek from under the heavens; thou shalt not forget it.

Jehovah will not pardon him, but the anger of Jehovah and his jealousy will then smoke against that man, and all the curse shall be upon him that is written in this book; and Jehovah will blot out his name from under the heavens;