Webster's Revised Unabridged Dictionary · 1913

Congeal

Congeal , transitive verb

[French congeler, Latin congelare, -gelatumn; con- + gelare to freeze, gelu frost. See Gelid.]

1.
To change from a fluid to a solid state by cold; to freeze.
A vapory deluge lies to snow congealed. — Thomson
2.
To affect as if by freezing; to check the flow of, or cause to run cold; to chill.
As if with horror to congeal his blood. — Stirling

Congeal , intransitive verb

To grow hard, stiff, or thick, from cold or other causes; to become solid; to freeze; to cease to flow; to run cold; to be chilled.
Lest zeal, now melted... Cool and congeal again to what it was. — Shakespeare