Lewis Short
rūmĭnātĭo (noun F) : ruminor
* A chewing over again, chewing the cud, rumination.
* Lit.: animalium,Plin. 11, 37, 79, § 201; Serv. Verg. E. 6, 54.
* Transf., a doubling; a repetition, return: corticis,Plin. 15, 23, 25, § 94: hiemis,id. 17, 22, 35, § 191.—*
* Trop., a thinking over, revolving in the mind, ruminating, rumination: cotidiana,Cic. Att. 2, 12, 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary