Many Latin words in English have both Latin-style plurals and English-style plurals:
- referendum – referendums, referenda.
- minimum – minimums, minima.
- gymnasium – gymnasiums, gymnasia.
- aquarium – aquariums, aquaria.
- amoeba – amoebas, amoebae.
- antenna – antennas, antennae.
- formula – formulas, formulae.
- index – indexes, indices.
- appendix – appendixes, appendices.
In technical language, generally, Latin-style is the only proper form of Latin plurals.
In all other contexts where both Latin-style and English-style are proper, which style of Latin plurals should I use?