GARBLED

To pick out such parts (of a text) as may serve a purpose; to mutilate; to pervert

"to garble a quotation"

To make false by mutilation or addition

"The editor garbled the story."

To sift or bolt, to separate the fine or valuable parts of from the coarse and useless parts, or from dross or dirt

"to garble spices"

(of a message etc) difficult to understand because it has been distorted; scrambled