presume

Etymology

From Middle English presumen, from Anglo-Norman presumer and its source, Latin praesūmere (“to take beforehand, anticipate”), from prae- + sūmere (“to take”).

verb

1. (transitive) With infinitive object: to be so presumptuous as (to do something) without proper authority or permission.
   I wouldn't presume to tell him how to do his job.
2. (transitive, now rare) To perform, do (something) without authority; to lay claim to without permission.
   Don't make the decision yourself and presume too much.
3. (transitive) To assume or suggest to be true (without proof); to take for granted, to suppose.
   Paw-prints in the snow allow us to presume a visit from next door's cat.
   Dr. Livingstone, I presume?
4. (transitive) To take as a premise; to assume for the sake of argument.
   If we presume that human cloning may one day become a mundane, everyday reality, then maybe it's time to start thinking more positively about our soon-to-arrive genetically engineered pseudo-siblings. 5 Feb 2011, John Patterson, The Guardian
5. (intransitive) To be presumptuous; with on, upon, to take advantage (of), to take liberties (with).
   Emma was not required, by any subsequent discovery, to retract her ill opinion of Mrs. Elton. Her observation had been pretty correct. Such as Mrs. Elton appeared to her on this second interview, such she appeared whenever they met again,—self-important, presuming, familiar, ignorant, and ill-bred. 1815, Jane Austen, Emma, volume II, chapter 15