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The Collaborative International Dictionary
Conglaciate

Conglaciate \Con*gla"ci*ate\ (?; 221), v. t. & i. [L. conglaciatus, p. p. of conglaciare. See Glaciate.] To turn to ice; to freeze. [Obs.]
--Sir T. Browne.

Wiktionary
conglaciate

vb. (context obsolete intransitive English) To turn to ice; to freeze.