formication

 
Pronunciation: /ˌfɔːmɪˈkeɪʃ(ə)n/

noun

[mass noun]
  • a sensation like insects crawling over the skin.

Origin:

early 18th century: from Latin formicatio(n-), from formicare 'crawl like an ant' (said of the pulse or skin), from formica 'ant'