marigraph：(记录潮汐的)自动记潮仪 

词根词缀： -mar-海 + -i- + -graph-写,画

• swan-song
• swap
• sward
• swarm
• swart
• swarthy
• swashbuckling
• swastika
• Swatch
• swatch
• swath
• swathe
• swather
• swatter
• swear
• swearing
• swearing-in
• sweat
• neuralgia
• neurasthenia
• neurectomy
• neuritis
• neurobiology
• neurogenic
• neurolinguistics