Freq #34474
Meanings
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adj
Having many mountains; characterized by mountains; of the nature of a mountain; rough (terrain); rocky.
[Water vapour bubbles] hit againſt the ſides of the more eminent and Mountainous Places, of the Globe, and by this Concuſſion are condenſed, and thus become heavier than the Air they ſvvom in, and ſo gleet dovvn the rocky Caverns of theſe Mountains, […].
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Thesaurus
Common collocations
From mountain + -ous after Middle French montagneux, from Late Latin montāniōsus, from montānia, from Latin montem (“mountain”).