“Nazarines?” Is that Christians?”
Sorry, skipped that.
“Nazarene” is the proper (and polite) way of referring to persons who follow Yeshua of Nazareth, at least for Hebrew speakers. It’s the given name in your own scriptures:
http://www.essene.com/What%20is%20a%20Nazarene.htm
I’m not sure how it changed. I suspect the Romans.
Few of us are Essene, or members of an “esoteric order,” so your source does not really applying.
Nazarene, however you spell it, does not come off as polite. But I can’t bring bring myself to call Mormons Saints or Bruce Jenner a woman. I just don’t call it being polite.