The spelling of "NEOPIR" may seem unusual, but it follows the rules of English phonetics. The word is pronounced as /niːoʊpər/ with the stress on the first syllable. The combination of "eo" represents the long "e" sound, while "p" and "r" are clearly pronounced. The word may not be well-known, but it could be a compound of "neo" meaning new and "pir" which could be a shortened version of "pirate". Overall, the spelling of "NEOPIR" makes sense when considering its pronunciation and etymology.