LAT

Lewis Short

văcerra (noun F) :
* A log, stock, post.
* Lit., Col. 9, 1, 3; 9, 1, 9; 6, 19, 2.
* Transf., like stipes, and our stock, block, as a term of abuse applied to a stupid person: vecorde et malefica vacerra, Liy. Andron. ap. Fest. p. 375 Müll. (Com. Fragm. v. 7 Rib.).
Charlton T. Lewis, Charles Short, A Latin Dictionary
memory