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

• sparke
• sparked
• sparked-out
• sparkes
• spark gap
• spark gaps
• sparkie
• sparkier
• sparkiest
• sparking
• sparking-plug
• sparking-plugs
• sparkish
• sparkishly
• sparkle
• scourgers
• scourges
• scourging
• scourie
• scouring
• scouring rush
• scouring-rush
• scouring rushes
• scourings
• scouring stick