I appreciate your historical account but words have acquired or changed meaning frequently in the past ("hacker" or "cloud" just to name a couple of obvious ones).
There is a large number of people using terms like unit, integration, system or end-to-end to differentiate between different types of automated tests ran in an xUnit-style framework: why insist on not allowing the term to gain a new meaning?
Fashion, but there is no good reason for it to be there. It does not communicate anything.