Webster's Revised Unabridged Dictionary · 1913

Compact

Compact (kom*pakt") , past participle and adjective

[Latin compactus, past participle of compingere to join or unite; com- + pangere to fasten, fix: compare French compacte. See Pact.]

1.
Joined or held together; leagued; confederated. [Obsolete]
Compact with her that's gone. — Shakespeare
A pipe of seven reeds, compact with wax together. — Peacham
2.
Composed or made; -- with of. [Poetic]
A wandering fire, Compact of unctuous vapor. — Milton
3.
Closely or firmly united, as the particles of solid bodies; firm; close; solid; dense.
Glass, crystal, gems, and other compact bodies. — Sir I. Newton
4.
Brief; close; pithy; not diffuse; not verbose; as, a compact discourse.

Compact , transitive verb

1.
To thrust, drive, or press closely together; to join firmly; to consolidate; to make close; -- as the parts which compose a body.
Now the bright sun compacts the precious stone. — Blackstone
2.
To unite or connect firmly, as in a system.
The whole body fitly joined together and compacted by that which every joint supplieth. — Eph. iv. 16

Compact (kom"pakt) , noun

[Latin compactum, from compacisci, p. p. compactus, to make an agreement with; com- + pacisci to make an agreement. See Pact.]

An agreement between parties; a covenant or contract.
The law of nations depends on mutual compacts, treaties, leagues, etc. — Blackstone
Wedlock is described as the indissoluble compact. — Macaulay
The federal constitution has been styled a compact between the States by which it was ratified. — Wharton