garble
To pick out such parts (of a text) as may serve a purpose not intended by the original author; to mutilate; to pervert.
He's garbled the details, but the outline of the story is still pretty clear.
To make false by mutilation or addition.
The editor garbled the story.
To corrupt; to make unreadable, incomprehensible, or unintelligible.
The announcement was completely garbled.
To sift or bolt; to separate the fine or valuable parts of (something) from the coarse and useless parts, or from dross or dirt.
obsolete
Where it comes from
From Middle English garbelen, from Anglo-Norman garbeler (“to sift”), from Medieval Latin garbellare (or a similar Italian word), from Arabic غَرْبَلَ (ḡarbala, “to sift”).
Adapted from the Wiktionary entry garble (CC BY-SA 4.0).