Zonk

Part of speech: verb

Pronunciation: /zɒŋk/

Definitions

1. To fall into a deep or sudden sleep ; to strike someone forcefully, causing unconsciousness or disorientation
2. To become quickly and deeply asleep without warning ; to deliver a powerful blow that stuns or incapacitates someone
3. To suddenly drop into sleep as if overwhelmed by tiredness ; to knock someone down or out with a strong hit

Etymology: "Zonk" is first recorded around 1950, but its origin is unknown. Dictionaries generally treat it as imitative, meaning the word was shaped to sound like the thing it describes, much as "bang" or "thud" are. The sound of a sharp blow or a heavy collapse is the most plausible model, and the verb's two senses fit that pattern: a forceful strike that knocks someone out, and a sudden plunge into sleep that feels like being struck down. The word's structure supports that echoic reading. The "z" gives a buzzing, abrupt onset, and the "onk" ending closes the sound with a dull thud. English has many similar blunt, one-syllable verbs of impact, so "zonk" fits a familiar sound pattern rather than an outside borrowing. Because no earlier source is known, its history begins with the mid-twentieth-century attestation.

Synonyms: stun, daze, shock, suddenly sleep, numb

Antonyms: awaken, revive, energize, stimulate, alert