There was no one to grub up pig-nuts for her, nor to extract insects of an edible sort from beneath the bark of trees.
This it uses to grub up roots and other things on which it lives.
He allows no strange dogs to prowl about the place, and grub up his buried bones.
Wild pig were very plentiful, and at night they would often grub up the ground a few yards from my hut.
Afterward by degrees you grub up the stumps and get the clean, tilled land.
If I grub up wild land, I shall hold it three years for pay.
You will have to assign men to cut brush, to pile it, and to grub up the roots.
They must grub up roots, or gather grass seeds, or catch wild animals—if they can.
We will grub up a few roots; perhaps Mrs. Charlton would like them for her wild garden shrubbery.
The cold was intense; and it was no easy task to grub up wild onions from the frozen ground to save themselves from starving.
c.1300, from hypothetical Old English *grubbian, from West Germanic *grubbjan (cf. Middle Dutch grobben, Old High German grubilon "to dig, search," German grübeln "to meditate, ponder"), from Proto-Germanic *grub- "to dig," base of Old English grafan (see grave (v.)).
"larva," early 15c., perhaps from grub (v.) on the notion of "digging insect," or from the possibly unrelated Middle English grub "dwarfish fellow" (c.1400). Meaning "dull drudge" is 1650s. The slang sense of "food" is first recorded 1650s, said to be from birds eating grubs, but also often linked with bub "drink."
Food: goods one can exchange at the kitchen door for grub/ nonchalantly gobble up mounds of this grub (1659+)
: Come over and grub with us (Black)