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moun·tainy | \ ˈmau̇n-tᵊn-ē 
, ˈmau̇nt-nē \
, ˈmau̇nt-nē \Definition of mountainy
1 : mountainous
2 : of, relating to, or living in mountains
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Time Traveler for mountainy
The first known use of mountainy was in 1582
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