Webster's Revised Unabridged Dictionary · 1913

Decompound

Decompound , transitive verb

[Prefix de- (intens. in sense 1) + compound, transitive verb]

1.
To compound or mix with that is already compound; to compound a second time.
2.
To reduce to constituent parts; to decompose.
It divides and decompounds objects into... parts. — Hazlitt

Decompound , adjective

[Prefix de- (intens.) + compound, a.]

1.
Compound of what is already compounded; compounded a second time.
2.
(Botany) Several times compounded or divided, as a leaf or stem; decomposite.

Decompound , noun

A decomposite.