vertigo

 
Pronunciation: /ˈvəːtɪgəʊ/

noun

[mass noun]
  • a sensation of whirling and loss of balance, associated particularly with looking down from a great height, or caused by disease affecting the inner ear or the vestibular nerve; giddiness.

Origin:

late Middle English: from Latin, 'whirling', from vertere 'to turn'