ADJOIN
adjoin
(verb) attach or add; “I adjoin a copy of your my lawyer’s letter”
touch, adjoin, meet, contact
(verb) be in direct physical contact with; make contact; “The two buildings touch”; “Their hands touched”; “The wire must not contact the metal cover”; “The surfaces contact at this point”
border, adjoin, edge, abut, march, butt, butt against, butt on
(verb) lie adjacent to another or share a boundary; “Canada adjoins the U.S.”; “England marches with Scotland”
Source: WordNet® 3.1
Etymology
Verb
adjoin (third-person singular simple present adjoins, present participle adjoining, simple past and past participle adjoined)
(transitive) To be in contact or connection with.
(transitive, mathematics, chiefly, algebra and number theory) To extend an algebraic object (e.g. a field, a ring, etc.) by adding to it (an element not belonging to it) and all finite power series of (the element).
can be obtained from by adjoining to .
Source: Wiktionary
Ad*join", v. t. [imp. & p. p. Adjoined; p. pr. & vb. n. Adjoining.]
Etym: [OE. ajoinen, OF. ajoindre, F. adjoindre, fr. L. adjungere; ad
+ jungere to join. See Join, and cf. Adjunct.]
Definition: To join or unite to; to lie contiguous to; to be in contact
with; to attach; to append.
Corrections . . . should be, as remarks, adjoined by way of note.
Watts.
Ad*join", v. i.
1. To lie or be next, or in contact; to be contiguous; as, the houses
adjoin.
When one man's land adjoins to another's. Blackstone.
Note: The construction with to, on, or with is obsolete or
obsolescent.
2. To join one's self. [Obs.]
She lightly unto him adjoined side to side. Spenser.
Source: Webster’s Unabridged Dictionary 1913 Edition