/skwɒʃ/
[verb] To press or crush something with force so that it becomes flat or loses its shape. The word can also be used to mean stopping or ending something quickly, like an idea or a plan.
The vegetable, the sport, and the crushing action all come from completely different etymological roots — they just happen to share a name.
The verb 'squash' meaning to crush or press something flat arrives in English in the mid-16th century, and its journey begins with Latin. The Latin word 'quassare', meaning to shake violently or shatter, gave rise to the Old French verb 'esquasser', which carried the sense of breaking or smashing something apart. This Old French form then passed into Middle English as 'squashen' or 'quashen', and over time the spelling and pronunciation settled into the modern 'squash'. The core idea of violent force — something being pressed, broken, or flattened — has remained remarkably stable throughout the word's long journey.
The Latin root 'quassare' was itself derived from 'quatere', meaning to shake or strike. This ancient root turns out to be surprisingly productive in English. Through different transmission paths, it also gave us 'concuss' — via Latin 'concutere' (to shake violently) → Latin 'concussio' → English 'concussion' — and 'percussion', which travelled through Latin 'percutere' (to strike through) → Latin 'percussio' → Old French 'percussion' → English 'percussion'. So when you squash a bug, you are reaching back to the same ancient Indo-European idea of striking that also lives inside a drum roll.
The noun sense of 'squash' as a soft, crushing sound or a crushed mass grew naturally out of the verb in the late 16th and early 17th centuries. If you squash something, you get a squash — the logic was simple enough. This noun form later inspired the name of the sport squash, which was invented at Harrow School in London around the 1830s. Students discovered that a punctured, 'squashy' rubber ball that flattened on impact was more exciting to play with than a hard one, because its unpredictable bounce made the game faster and more challenging. The sport was named after this soft, crushable quality of the ball.
The squash you eat — the vegetable — comes from an entirely different source, which makes it one of English's more interesting cases of accidental collision. It derives from the Narragansett word 'askutasquash', used by the Indigenous people of what is now New England, meaning roughly 'the green things eaten raw'. English colonists in North America encountered the word in the early 17th century and shortened it dramatically, first to 'squash' as a convenience. Over time the longer original word was simply forgotten by English speakers, leaving only the clipped form behind. The Narragansett root has no connection whatsoever to Old French 'esquasser' — the two words simply collapsed into the same shape by coincidence.
What makes 'squash' so linguistically interesting, then, is that a single common English word secretly contains three entirely separate histories running in parallel. The crushing verb traces back to Latin 'quassare' through Old French 'esquasser'. The sport borrowed its name from the physical sensation described by that verb. And the orange and green vegetables on your dinner table carry the ghost of a Narragansett word spoken long before English arrived on American shores. Few everyday words hide so many distinct worlds inside such a small, soft sound.