undulate

Meanings

1. 1
   verb

   increase and decrease in volume or pitch, as if in waves

   The singer's voice undulated.

2. 2
   verb

   move in a wavy pattern or with a rising and falling motion

   The curtains undulated.

3. 3
   verb

   To cause to move in a wavelike motion.

   Breath vocalized, i.e., vibrated and undulated.

4. 4
   verb

   To move in wavelike motions.

   His tongue undulated.

First attested in 1664; borrowed from New Latin undulātus, the perfect passive participle of undulō (see -ate (verb-forming suffix)), from an unattested *undula (“small wave”), diminutive of Latin unda (“wave”).

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