Chapter Aries to Arn-monat of A by Brewer's Phrase & Fable

The secular arm. Civil, in contradistinction to ecclesiastical jurisdiction.

"The relapsed arm delivered to the secular arm." - Priestley. Corruptions of Christianity.

To arm a magnet. To put an armature on a loadstone.
A coat of arms. An heraldic device.
A passage of arms. A literary controversy; a battle of words.
An assault at arms (or of arms). An attack by fencers; a hand-to-hand military exercise.
At arm's length. At a distance. To keep one at arm's length is to repel familiarity.
In arms. A child in arms is an infant carried about in one's arms.
A city in arms is one in which the people are armed for war.
King of arms. A chief herald in the College of Heralds. Here arms means heraldic devices.
Small arms. Those which do not, like artillery, require carriages.
To appeal to arms. To determine to decide a litigation by war.
To arms! Make ready for battle.

"To arms! cried Mortimer,
And couched his quivering lance."
Gray: The Bard.

Come to my arms. Come, and let me embrace you.
To lay down their arms. To cease from armed hostility; to surrender.
Under arms. Prepared for battle; in battle array.
Up in arms. In open rebellion; roused to anger, as the clergy were up in arms against Colenso for publishing his Lectures on the Pentateuch. The latter is a figure of speech.
With open arms. Cordially; as persons receive a dear friend when they open their arms for an embrace.

Arnauts [brave men ]. Albanian mountaineers.

"Stained with the best of Arnaut's blood." Byron: The Giaour.

Arn-monat Anglo -Saxon, ærn-monath, barn month. The Anglo-Saxon name for August, because it was the month for garnering the corn.