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vibration (n.)

1650s, from Latin vibrationem (nominative vibratio) "a shaking, a brandishing," noun of action from past participle stem of vibrare "set in tremulous motion" (from PIE root *weip- "to turn, vacillate, tremble ecstatically"). Meaning "intuitive signal about a person or thing" was popular late 1960s, but has been recorded as far back as 1899. Related: Vibrational.