gru-gru or groo-groo /grooˈgroo/

1. A name for several tropical American palms related to the coconut palm, yielding oil-nuts
2. An edible weevil grub (also gru-gru worm) found in their pith

• extensimeters
• extension
• extensional
• extensionalism
• extensionalisms
• extensionalities
• extensionality
• haw-haws
• hawing
• hawk
• hawk-beaked
• hawkbell
• hawkbells
• hawk-billed
• hawkbit
• hawkbits
• hawked
• hawker
• hawkers
• hawkey
• Hawk-Eye
• hawk-eyed
• hawkeys
• hawkie
• hawkies