remora /remˈə-rə/

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

• raft-ports
• raft-rope
• raft-ropes
• rafts
• raftsman
• raftsmen
• rag
• raga
• ragamuffin
• ragamuffins
• rag-and-bone-man
• rag-and-bone-men
• ragas
• rag babies
• rag baby
• ragbag
• ragbags
• ragbolt
• ragbolts
• rag-book
• rag-books
• rag-bush
• rag-bushes
• rag'd
• rag day