merge

verb

• combine or cause to combine to form a single entity: [no object]:the merchant bank merged with another broker [with object]:he agreed to merge his broadcasting company with a multinational concern
• blend or cause to blend gradually into something else so as to become indistinguishable from it: [no object]:he crouched low and endeavoured to merge into the darkness of the forest [with object]:he placed a sheet of paper over the fresh paint to merge the colours
• [with object] (usually merge something in) Law absorb (a title or estate) in another.