annex

ot noun

1. An addition, an extension.
2. An appendix to a book or document.
3. An addition or extension to a building.
4. An addition to the territory of a country or state, from a neighbouring country or state, normally by military force.

fe’l verb

1. To add something to another thing, especially territory; to incorporate. The ancient city of Petra was annexed by Rome.
2. To attach or connect, as a consequence, condition, etc. to annex a penalty to a prohibition, or punishment to guilt
3. To join; to be united.