'Add' in the Bible

Then they shall confess their sin which they have done: and he shall recompense his trespass with the principal thereof, and add unto it the fifth part thereof, and give it unto him against whom he hath trespassed.

and you will add a fourth of wine for the libation upon the burnt offering, or to the sacrifice for each ram-lamb.

Then Moses told Aaron, “Take your firepan, place fire from the altar in it, and add incense. Go quickly to the community and make atonement for them, because wrath has come from the Lord; the plague has begun.”

For the purification of the unclean person, they are to take some of the ashes of the burnt sin offering, put them in a jar, and add fresh water to them.

And lo, ye have risen in the stead of your fathers, an increase of men -- sinners, to add yet to the fury of the anger of Jehovah toward Israel;

And among the cities which ye shall give unto the Levites there shall be six cities for refuge, which ye shall appoint for the manslayer, that he may flee thither: and to them ye shall add forty and two cities.