[steve1977]

Initially actually (afaik) it stood for N10, for the Intel i860 CPU. I think “New Technology” came from marketing then.

[nullindividual]

If you watch the interview with David Cutler to the time code I linked to, he explains that NT stands for New Technology which marketing did not want.

[lproven]

In which he specifically says that there may have been some point, early on, where it stood for N-10.

I just watched it. He does not say what you are maintaining he says.