presume

verb

1. (transitive)To be so presumptuous as (to do something) without proper authority or permission [with to (+ infinitive)].

   “I don't want to pretend to be an authority on this line of business, so I would never presume to tell you how to run your own company.”

   “There were no women at the birth of the International Gay Association in Coventry, England in 1978. The men there decided they would like lesbians to join; they would not presume to formulate aims for them but would adjust the organization if and when women joined it.”

2. (archaic, transitive)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. (intransitive)To impose (on) for one's advantage; to be presumptuous; to take advantage (of); to take liberties (with) [with on or upon].

   “Thanks, but I can't accept the money; I would not want to presume on the generosity of a stranger'”

   “Presume not on thy heart when mine is slain; Thou gavest me thine, not to give back again.”

   “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.”

   “Piliso then vented his anger on us, accusing us of lying to him. He said we had presumed on his hospitality and the good name of the regent.”