the word 'ultra-sensitive' is a modern english compound formed by combining the latin prefix 'ultra-' with the adjective 'sensitive'. the prefix 'ultra-', derived from latin, literally means 'beyond' and has been used in english since the 19th century to denote an extreme degree, as seen in words like 'ultramodern' or 'ultraviolet'. the base word 'sensitive' originates from the latin verb 'sentire', meaning 'to feel', which passed into english via old french. when combined, the morphemes create a term whose literal logic is "beyond feeling" or "excessively capable of sensation," accurately describing something with an exceptionally high degree of responsiveness.

Structure: ultra (beyond) + sensitive (responsive) ultra (from latin 'ultra', meaning 'beyond, on the other side', used as an intensifying prefix); sensitive (from latin 'sensitivus', meaning 'capable of sensation', from 'sentire' meaning 'to feel').