erethism

 
Pronunciation: /ˈɛrɪθɪz(ə)m/

noun

[mass noun]
  • 1excessive sensitivity or rapid reaction to stimulation of a part of the body, especially the sexual organs.
  • 2a state of abnormal mental excitement or irritation.

Origin:

early 19th century: from French éréthisme, from Greek erethismos, from erethizein 'irritate'