annex

transitive verb | \ ə-ˈneks, ˈa-ˌneks \ | an·nex

1. : attach 2 correspondence annexed to the petition a greenhouse annexed to the building

2. : to incorporate (as a territory) within a political domain the district annexes only shards of 24 additional parishes —Hays v. Louisiana, 839 F. Supp. 1188 (1993)