Grub is defined as to dig, search through or work very hard.(verb)
An example of grub is digging and pulling weeds out of a garden bed.
The definition of grub is a stubby worm-shaped larva of some insects, or a slang term for food.(noun)
An example of grub is the stage of a beetle before it cocoons and turns into its beetle form.
See grub in Webster's New World College Dictionary
Origin: < grubSlang to eat
Origin: ME grubben, to dig, prob. < OE *grybban (akin to OHG grubilōn, to bore into): for IE base see grave
Origin: < ? notion “what is grubbed for”Slang food
Origin: ME grubbe, prob. < the v.
See grub in American Heritage Dictionary 4
verb grubbed grubbed, grub·bing, grubs verb, transitive
Origin: Middle English grubben
Origin: , from Old English *grybban; see ghrebh-2 in Indo-European roots.
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