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The Collaborative International Dictionary
Absume

Absume \Ab*sume"\ ([a^]b*s[=u]m"), v. t. [L. absumere, absumptum; ab + sumere to take.] To consume gradually; to waste away. [Obs.]
--Boyle.

Wiktionary
absume

vb. (context transitive obsolete English) To consume gradually; to waste away. (Attested from the late 16th century until the mid 18th century.)