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v. as·sumed, as·sum·ing, as·sumes
1. To take for granted; suppose: The study assumes that prices will rise.
a. To take upon oneself (a duty or obligation): assume responsibility; assume another's debts.
b. To undertake the duties of (an office): assumed the presidency.
a. To take on (an appearance, role, or form, for example); adopt: "The god assumes a human form" (John Ruskin).
b. To pretend to have; feign: assume an air of authority.
4. To take over without justification; seize: assume control.
5. To clothe oneself in; don: The queen assumed a velvet robe.
6. To take up or receive into heaven.
To make a supposition; suppose or believe: "Is Kay's husband coming to dinner too?" "I assume so."
[Middle English assumen, from Latin assūmere : ad-, ad- + sūmere, to take; see em- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
in a presumable manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014