词根词缀：rumin-, rumina-

【来源及含义】Latin: to chew over again, to chew the cud; to muse or to meditate; that is, to think about something in a deep and serious or dreamy and abstracted way or to think about something carefully, calmly, seriously, and for a long time

【同源单词】cud, obsessive rumination, rumen, rumenitis, ruminant, Ruminantia