also grubstake, "material, provisions, etc. supplied to an enterprise (originally a prospector) in return for a share in the profits," by 1876, American English western mining slang, from grub (n.) + stake (n.2).
groyne
grub
grubber
grubby
grubelsucht
grub-stake
Grub-street
grudge
gruel
gruelling
gruesome