Past tense of snore; made that rough, snorting sound while sleeping caused by vibrating tissues in the throat.
From Middle English snoren, possibly onomatopoetic (imitating the sound itself), related to snort; used for centuries to describe that distinctive sleeping sound.
Snoring seems silly until you realize it signals actual physical problems—the tissues relaxing so much that breathing becomes difficult—yet no one has ever woken themselves up from their own snoring because your brain's sound-filtering systems shut down during sleep.
Complete word intelligence in one call. Free tier — 50 lookups/day.