remora /remˈə-rə/

1. The sucking-fish, formerly believed to stop ships by attaching its sucker
2. An obstacle (figurative)

• harmonometers
• harmony
• harmony of the spheres
• harmost
• harmosties
• harmosts
• harmosty
• harmotome
• harmotomes
• harms
• harn
• harness
• harness-cask
• harness-casks
• harnessed
• harnessed antelope
• harnessed antelopes
• harnesses
• harnessing
• harness-maker
• harness-makers
• harness race
• harness races
• harness racing
• harness-room