From the post-Classical Latin monotonia and its etymon the Ancient Greek μονοτονία (monotonia, “sameness of tone”, “monotony”); compare the French monotonie and the Italian monotonia, as well as the later English monotone.
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monotony (plural monotonies)
- Tedium as a result of repetition or a lack of variety.
- (mathematics) The property of a monotonic function.
- The quality of having an unvarying tone or pitch.
Derived terms 
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