For one or two weeks, a large part of the east coast of Australia has received very heavy rainfall, with flooding and deaths in some parts. My city has been spared the worst, and I’ve been working from home anyway, so I haven’t really been affected. But two of my choirs have started in-venue rehearsals, so I’ve had to venture out at times. Yesterday evening I caught a train to the city for my church choir rehearsal. The train I’d intended to catch was cancelled and the next train was slow at best and stationary for long periods. During the longest delay, the guard made several announcements. The first time, he explained that the rainfall and flooding had caused “de … ruptions” on the network, seemingly caught between delays and disruptions. The second time he clearly said “deruptions”, the third time “delays” and the fourth time “disruptions”.
Deruption is not an English word, though it possibly could be. But what it is about the word which makes it sound so awkward? After some thinking, I can’t decide. De– has a range of meanings including “privation, removal, and separation; negation; descent; reversal; intensity” (thefreedictionary) and rupt– means break, burst, and is found in abrupt, bankrupt, corrupt, disrupt, erupt, interrupt, irrupt and rupture (dictionary.com). Rupt is not a word by itself, but it’s not necessary that the root of a word is a whole English word, for example, decide.
In fact, searching online found two songs titled Deruption, which appear not to be typos, but searching for more information gets overwhelmed by results for disruption and eruption.