katabothron /kat-ə-bothˈron/ or katavothron /ka-tavˈo-thron/

An underground water channel

• petroleums
• petrolhead
• petrolheads
• petrolic
• petroliferous
• petrolled
• petrol lighter
• petrol lighters
• petrolling
• pretendedly
• pretendent
• pretendents
• pretender
• pretenders
• pretendership
• pretenderships
• pretending
• pretendingly
• pretends
• pretense
• pretenses
• pre-tension
• pretension
• pre-tensioned
• pre-tensioner