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

Mental discipline, esp mathematical

• thiram
• thirams
• third
• Third Age
• Third-Ager
• thirdborough
• thirdboroughs
• third class
• third-class
• third classes
• third degree
• third degree burn
• third degree murder
• third dimension
• third-dimensional
• thirded
• third estate
• third eye
• third eyelid
• third eyelids
• third eyes
• third force
• third forces
• third gear
• third gears