mathesis /mə-thēˈsis or (obsolete) mathˈi-sis/

Mental discipline, esp mathematical

• unbreathable
• unbreathed
• unbreathed-on
• unbreathing
• unbred
• unbreech
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• unbreeching
• unbribable
• unbridged
• unbridle
• unbridled
• unbridledness
• unbridlednesses
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• un-British
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• unbroke
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• unbrokenly
• unbrokenness
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• unbrotherlike