Lewis Short
ex-cĕrēbro, ārecerebrum
* To deprive of brains, i. q. to make senseless: canem,Vulg. Isa. 66, 3.—Part.: ex-cerēbrā-tus, a, um, deprived of brains, i. q. rendered senseless, stupefied: excerebratus es novo vino,Tert. adv. Marc. 4, 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary