to take on (adopt, wear, strike a pose or appearance of) -- often while pretending or disguising
For her I left my father’s house, and for her I assumed this disguise, to follow her whithersoever she may go, as the arrow seeks its mark or the sailor the pole-star.
Don Quixote said in reply that she would do him a favour if thenceforward she assumed the "Don" and called herself Dona Tolosa.
The hidalgos say that, not keeping within the bounds of your quality of gentleman, you have assumed the ’Don,’ and made a knight of yourself at a jump, with four vine-stocks and a couple of acres of land, and never a shirt to your back.
…carefully thought over what they should do to carry out their object, the curate hit upon an idea very well adapted to humour Don Quixote, and effect their purpose; and his notion, which he explained to the barber, was that he himself should assume the disguise of a wandering damsel, while the other should try as best he could to pass for a squire, and that they should thus proceed to where Don Quixote was, and he, pretending to be an aggrieved and distressed damsel, should ask a…
…from rushing out into the streets, crying aloud and proclaiming openly the perfidy and treachery of which I was the victim; but this transport of rage was for the time checked by a resolution I formed, to be carried out the same night, and that was to assume this dress, which I got from a servant of my father’s, one of the zagals, as they are called in farmhouses, to whom I confided the whole of my misfortune, and whom I entreated to accompany me to the city where I heard my enemy was.
Three months ago, therefore, I went out to meet him as a knight-errant, under the assumed name of the Knight of the Mirrors, intending to engage him in combat and overcome him without hurting him, making it the condition of our combat that the vanquished should be at the disposal of the victor.
There are no more uses of "assume" identified with this meaning in the book.
Show samples from other sources
She assumed the identify of her victim until the body was found.