Peter

Part of speech: verb

Pronunciation: /ˈpiːtə/

Definitions

1. To gradually diminish or fade away until coming to an end
2. To gradually decrease in quantity or intensity until nothing remains
3. To dwindle slowly in size, amount, or strength until it ceases entirely

Etymology: The verb "peter" meaning to dwindle away until nothing is left is an American coinage of 1902, and its most plausible origin lies in mining. Miners who saw a vein of ore thin out and vanish called it "peter out," and the phrase spread from the mines into everyday speech. The source treats the origin as uncertain, so the mining link is the strongest explanation available rather than a settled fact. The main rival theory ties the word to saltpetre, the potassium nitrate that forms as a crust on some stones and was a key ingredient in gunpowder. Its name comes from Medieval Latin "sal petrae," meaning "salt of stone," and the first part was later reshaped by English speakers to resemble "salt." Miners digging for saltpetre would have known such deposits could thin and disappear, which makes this a tempting link, though it remains unproven. A second theory connects the word to French "péter," meaning to break wind, which the source traces back to an imitative Proto-Indo-European root. Mining slang has a habit of coarse humour, so the idea is not absurd, but there is no firm evidence that it was the route.

Synonyms: dwindle, fade

Antonyms: increase, grow