syn·​aes·​the·​sis | \ ˌsinə̇sˈthēsə̇s\
plural -es

Definition of synaesthesis

: harmony of different or opposing impulses produced by a work of art synaesthesis of thought and feeling in philosophical poetry synaesthesis of anxiety and calmness in a tragedy — compare synesthesia

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History and Etymology for synaesthesis

Greek synaisthēsis joint sensation, joint perception, from the stem of synaisthanesthai to perceive simultaneously, to share in perception (from syn- + aisthanesthai to perceive) + -sis

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marked by a state of overwhelming emotion

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