Verb

To cause disagreement or alienation among or within.

* 1516 , , Utopia , "Of Their Military Discipline":

If they cannot disunite them by domestic broils, then they engage their neighbours against them.

* 1863 , , Hard Cash , ch. 44:

Secrets disunite a family.

To separate, sever, or split.

* 1899 , , Jennie Baxter, Journalist , ch. 16:

I have discovered how to disunite that force and that particle.

To disintegrate; to come apart.

* 1843 , , A Blot In The 'Scutcheon , Act I:

You cannot bind me more to you, my lord.

Farewell till we renew... I trust, renew

A converse ne'er to disunite again.

Verb

(disengag)

(ambitransitive) To release or loosen from something that binds, holds, entangles, or interlocks; unfasten; detach; disentangle; free.

{{quote-Fanny Hill, part=5 , Disengaging myself then from his embrace, I made him sensible of the reasons there were for his present leaving me; on which, though reluctantly, he put on his cloaths with as little expedition, however, as he could help, wantonly interrupting himself, between whiles, with kisses, touches and embraces I could not refuse myself to. }}

* 1982 , Douglas Adams, Life, the Universe, and Everything

Ford still had his hand stuck out. Arthur looked at it with incomprehension.
"Shake," prompted Ford.
Arthur did, nervously at first, as if it might turn out to be a fish. Then he grasped it vigorously with both hands in an overwhelming flood of relief. He shook it and shook it.
After a while Ford found it necessary to disengage .