'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 you a nation mightier and greater than they.’

Therefore it shall come about when the Lord your God has given you rest from all your surrounding enemies, in the land which the Lord your God gives you as an inheritance to possess, you shall blot out the memory of Amalek from under heaven; you must not forget.

The Lord shall never be willing to forgive him, but rather the anger of the Lord and His jealousy will burn against that man, and every curse which is written in this book will rest on him, and the Lord will blot out his name from under heaven.