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The Collaborative International Dictionary
Untreasure

Untreasure \Un*treas"ure\, v. t. [1st pref. un- + treasure.] To bring forth or give up, as things previously treasured. ``The quaintness with which he untreasured, as by rote, the stores of his memory.''
--J. Mitford.

Wiktionary
untreasure

vb. (context transitive obsolete poetic English) To bring forth or give up, as things previously treasured.