gibber

He was too occupied with his own vision, and vividly burned before him the sordid barrenness of a poorhouse ward, where an ancient, very like what he himself would become, maundered and gibbered and drooled for a crumb of tobacco for his old clay pipe, and where, of all horrors, no sip of beer ever obtained, much less six quarts of it.

"The sheeted dead Did squeak and gibber in the streets of Rome."[1]

He gibbered his own rage and hurt, and, stooping, dealt Jerry a tremendous blow alongside the head and neck.