From Hull AWE
This female forename has two pronunciations.
- Traditional British RP English has the stress on the first syllable, whose vowel sounds like that in 'say': 'NAY-er-me'. The other two vowels are not clearly formed. (IPA: /ˈneɪ ə mɪ/)
- A pronunciation increasingly heard is 'nay-OH-mi', with the stress on the second syllable, whose vowel becomes a clear 'o': IPA: /neɪ ˈəʊ mɪ/. According to LPD, this is the usual pronunciation in the USA.
- Accoprding to [], it "was originally pronounced [in Hebrew] with the stress on the a (the o ... is very short)."