Webster's Revised Unabridged Dictionary · 1913

Disjoin

Disjoin (dis*join") , transitive verb

[Old French desjoindre, French disjoindre, déjoindre, from Latin disjungere; dis- + jungere to join. See Join, and compare Disjoint, Disjunct.]

To part; to disunite; to separate; to sunder.
That marriage, therefore, God himself disjoins. — Milton
Never let us lay down our arms against France, till we have utterly disjoined her from the Spanish monarchy. — Addison
Windmill Street consisted of disjoined houses. — Pennant

Disjoin , intransitive verb

To become separated; to part.