When I was at University, I worked for the Department of Annual Giving, at first on the phones. I still remember one of the other callers always starting her sp

When I was at University, I worked for the Department of Annual Giving, at first on the phones. I still remember one of the other callers always starting her spiel with "We're calling all the alumnis." With an English plural on top of a Latin plural, for good measure, I suppose. I cringed every time. (Though, to be fair, the native English word children is in fact a double plural as well. [The -re is plural, thus early/dialectal forms childer "child [pl.]", and then later with a plural -n slapped on top of the already plural word, presumably because the -re plural ending had become somewhat obscure, just as Latin plural endings are for some modern English speakers.] Doesn't make me cringe any less at "alumnis", despite that.)