देवली

Doolally, also written 'doolali' or 'dolally,' derives from Deolali (देवली / Deolālī), a town in the Nasik District of Maharashtra, India, which housed a major British Army transit camp — formally the Deolali Cantonment, later the Deolali Camp — from 1861 onwards. Soldiers returning from postings across India would be sent to Deolali to await troopships back to Britain. The ships ran on a seasonal schedule, and the wait could last anywhere from a few weeks to several months — often through the hottest part of the Indian year, with nothing to do, inadequate medical facilities, and the compound anxiety of men who had survived their postings and were now desperate to get home. The Hindi place name, filtered through British Army pronunciation, became 'doolally,' and the phrase 'gone doolally tap' — tap being a Hindustani word for malarial fever — described the state of men who had cracked under the combined pressure of boredom, heat, illness, and anticipation.

The specific symptoms associated with 'doolally tap' were well enough recognised by British military culture that they had a name before they had a psychiatric category. Men became distracted, unpredictable, irritable, given to obsessive thoughts or erratic behaviour. Some experienced what would now be recognised as anxiety disorders or the early stages of what the twentieth century would call combat stress reaction or post-traumatic stress disorder. The military medical establishment of the nineteenth century had limited vocabulary and limited treatment for mental disturbance, and 'gone doolally tap' served as a colloquial diagnosis that simultaneously described the condition and deflected serious medical attention from it — the men were not ill, exactly, they had simply been in Deolali too long.

The word entered civilian British English in the early twentieth century, appearing in soldiers' memoirs and accounts of colonial service, then spreading more widely after the First World War as veterans carried their Anglo-Indian vocabulary into domestic circulation. By mid-century, 'doolally' had shed both the 'tap' suffix and its specifically military-medical meaning, surviving as a general informal term for eccentric, slightly mad, or mentally confused behaviour, with the Indian origin increasingly opaque. The Deolali Camp continued operating as an Indian Army facility after 1947 and remains an active military installation today — the town that gave its name to British slang for madness is still a working cantonment.

The word's journey is a reminder that place names can become common nouns through a specific enough history of suffering. Bedlam (from the Bethlehem Royal Hospital in London) is the most famous English example: a specific institution becomes a generic term for chaos. Doolally follows the same logic — a specific transit camp, a specific set of conditions, a specific kind of breakdown — but the place is now almost entirely invisible behind the slang. Few people who say 'gone completely doolally' know they are naming a military camp in Maharashtra. The town exists; the camp exists; the word has been entirely detached from both.