1. Plural of polymath; instances or examples of learning in many different fields of study.
Usage: Rarely used in the plural form; 'polymaths' (referring to people) is more common than 'polymathies' (referring to the quality or instances of learning).
2. The quality or state of being learned in many different subjects; polymathic knowledge or expertise.
Usage: Archaic or formal usage; 'polymathy' (singular) is the standard term.

Examples

• The polymathies of Renaissance scholars like Leonardo da Vinci remain legendary.
• Her polymathies in mathematics, music, and philosophy impressed everyone at the conference.
• Ancient polymathies were celebrated in classical texts as marks of intellectual achievement.
• The university honored his polymathies by awarding him degrees across multiple disciplines.
• Such polymathies are rare in modern academia, where specialization is the norm.