vertigo
/ˈvɜːtɪgəʊ/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（尤指从高处往下看, 或因内耳或前庭神经疾病所致的）眩晕。
词源
late Middle English: from Latin, 'whirling', from vertere 'to turn'.