- ruminate
- 1533, "to turn over in the mind," also "to chew cud" (1547), from L. ruminatus, pp. of ruminare "to chew the cud, turn over in the mind," from rumen (gen. ruminis) "gullet," of uncertain origin.
- ruminant (n.)
- 1661, from L. ruminantem (nom. ruminans), prp. of ruminare "to chew the cud" (see ruminate).