All 5 Uses of

presume

in

Don Quixote

And said most sage Cide Hamete to his pen, "Rest here, hung up by this brass wire, upon this shelf, O my pen, whether of skilful make or clumsy cut I know not; here shalt thou remain long ages hence, unless presumptuous or malignant story-tellers take thee down to profane thee.†
Chpt 2.73-74 *

presumptuous = exercising privileges to which one is not entitled

I at once packed up in a linen pillow-case a woman's dress, and some jewels and money to provide for emergencies, and in the silence of the night, without letting my treacherous maid know, I sallied forth from the house, accompanied by my servant and abundant anxieties, and on foot set out for the city, but borne as it were on wings by my eagerness to reach it, if not to prevent what I presumed to be already done, at least to call upon Don Fernando to tell me with what conscience he had done it.†
Chpt 1.27-28

The glitter of his showy attire took her fancy, his ballads bewitched her (for he gave away twenty copies of every one he made), the tales of his exploits which he told about himself came to her ears; and in short, as the devil no doubt had arranged it, she fell in love with him before the presumption of making love to her had suggested itself to him; and as in love-affairs none are more easily brought to an issue than those which have the inclination of the lady for an ally, Leandra and Vicente came to an understanding without any difficulty; and before any of her numerous suitors had any suspicion of her design, she had already carried i†
Chpt 1.51-52

"I believe it," said Don Juan; "and were it possible, an order should be issued that no one should have the presumption to deal with anything relating to Don Quixote, save his original author Cide Hamete; just as Alexander commanded that no one should presume to paint his portrait save Apelles."†
Chpt 2.59-50

"I believe it," said Don Juan; "and were it possible, an order should be issued that no one should have the presumption to deal with anything relating to Don Quixote, save his original author Cide Hamete; just as Alexander commanded that no one should presume to paint his portrait save Apelles."†
Chpt 2.59-50

Definitions:

(1) (presume as in: presumption of innocence)
to think of something as true or likely, even though it is not known with certainty

Something can be presumed because it seems reasonable or because there is a rule or law demanding such an assumption. For example, in the United States someone charged with a crime is presumed by law to be innocent unless they are proven guilty at a trial.
(2) (presumptuous as in: she is presumptuous)
exercising privileges to which one is not entitled -- such as being too familiar or too bossy