adjoin

 
Pronunciation: /əˈdʒɔɪn/

verb

[with object]
  • be next to and joined with (a building, room, or piece of land): the dining room adjoins a conservatory
  • archaic or technical add or join something to: to them were adjoined branches of trees

Origin:

Middle English: from Old French ajoindre, from Latin adjungere, from ad- 'to' + jungere 'to join'