Lewis Short
(adjective) : per-grandis, e
* Very large, very great (rare but class.): gemma,Cic. Verr. 2, 4, 27, ยง 62: vectigal,id. Agr. 1, 4, 9: lucrum,Plaut. Pers. 4, 3, 23: pergrandis natu,very old, very aged,Liv. 29, 29, 6: lapis,Vulg. Josue, 24, 26.
Charlton T. Lewis, Charles Short, A Latin Dictionary