'Sever' in the Bible

Then he shall tear it by its wings, but shall not sever it. And the priest shall offer it up in smoke on the altar on the wood which is on the fire; it is a burnt offering, an offering by fire of a soothing aroma to the Lord.

He shall bring them to the priest, who shall offer first that which is for the sin offering and shall nip its head at the front of its neck, but he shall not sever it.