chthonian /(k-)thōˈni-ən/ or chthonic /(k-)thonˈik/

1. Relating to the earth or the underworld and the deities inhabiting it
2. Ghostly

• boatmen
• boat neck
• boat-necked
• boat necks
• boat people
• boat race
• boat races
• boat racing
• boat racings
• boats
• boat shoe
• boat shoes
• boat-song
• boat-songs
• boatswain
• boatswain-bird
• boatswain-birds
• boatswains
• boatswain's call
• boatswain's chair
• boatswain's chairs
• boatswain's mate
• boatswain's mates
• boatswain's pipe
• boatswain's whistle