the portion of food that a ruminant returns from the first stomach to the mouth to chew a second time.
chew one's/the cud, Informal. to meditate or ponder; ruminate.
Origin of cud
before 1000; Middle English; Old English cudu,
variant of cwiodu, cwidu;
akin to Old High German quiti
glue, Sanskrit jatu
resin, gum. See quid1
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for chew the cud
partially digested food regurgitated from the first stomach of cattle and other ruminants to the mouth for a second chewing
chew the cud to reflect or think over something
Word Origin for cud
Old English cudu, from cwidu what has been chewed; related to Old Norse kvātha resin (for chewing), Old High German quiti glue, Sanskrit jatu rubber
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for chew the cud
Old English cudu "cud," earlier cwudu, common Germanic (cf. Old Norse kvaða "resin," Old High German quiti "glue," German Kitt "putty"); perhaps from PIE root *gwet- "resin, gum."
Online Etymology Dictionary, © 2010 Douglas Harper
Food that has been partly digested and brought up from the first stomach to the mouth again for further chewing by ruminants, such as cattle and sheep.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Idioms and Phrases with chew the cud
Also, chew over. Ponder over, meditate, as in John tends to chew the cud before he answers, or Let me chew that over and let you know. The first term, first recorded in 1382, transfers the appearance of a patiently ruminating cow to a person deep in thought. The variant was first recorded in 1696.
The American Heritage® Idioms Dictionary
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