The spelling of the word "Belleregi" in the Welsh language follows a phonetic pattern, as each letter is pronounced separately. The word is pronounced as /bɛlɛrɛgɪ/, with a clear emphasis on the second syllable. The letter "ll" in Welsh is pronounced as a voiceless alveolar lateral fricative sound, which sounds similar to the "kl" sound in the English word "clap." "Eg" in Welsh is pronounced as a short "e" sound followed by a hard "g" sound. Overall, the spelling of "Belleregi" accurately represents its phonetic pronunciation in Welsh.