Webster's Revised Unabridged Dictionary · 1913

Abroach

Abroach ({not transcribed}) , transitive verb

[Old English abrochen, Old French abrochier. See Broach.]

To set abroach; to let out, as liquor; to broach; to tap. [Obsolete] — Chaucer

Abroach , adverb

[Prefix a- + broach.]

1.
Broached; in a condition for letting out or yielding liquor, as a cask which is tapped.
Hogsheads of ale were set abroach. — Sir W. Scott
2.
Hence: In a state to be diffused or propagated; afoot; astir.
Mischiefs that I set abroach. — Shakespeare