- grim
- grin
- grinning
- grip
- griping
- gripping
- grump
- grumping
- guru
- inuring
- inurn
- inurning
- mirin
- miring
- murmur
- murmuring
- nigiri
- prig
- prim
- priming
- primp
- primping
- pruning
- purging
- purr
- purring
- rigging
- rimming
- ring
- ringing
- ripping
- ruin
- ruing
- ruining
- rump
- rung
- running
- umpiring
- unrig
- unrigging
- urging