In science we often invent words, but that doesn't mean we know how to spell them. Most of the time words are invented by adding prefixes. In that case should there be a hyphen or not? Specifically, I need to use
- reexcite or re-excite (reentry is similar and a official word)
- repolarize or re-polarization
The second seems fine in the no-hyphen form, but for the first, the double "e" makes the word difficult to read. I've seen similar use with a i diaeresis over the e: ë as in reëxcite, but that looks strange; any pointers?