The spelling of the word "miera" can be a bit confusing at first glance. In terms of phonetic transcription, the word is pronounced /miɛra/. The reason for the spelling is likely due to its origin in a Romance language such as Spanish or Italian, where the "e" serves as a more open vowel than a traditional English "e." Additionally, the "i" before the "e" could indicate a diphthong, resulting in the unique sound of this word.