The spelling of the word "Sealgh" can be explained using IPA phonetic transcription. The word is pronounced /sɛlɡ/ where the "s" is pronounced like the "s" in "sit", the "e" is pronounced like the "e" in "bet", the "l" is pronounced like the "l" in "lion", and the "gh" is silent. This unique spelling is likely to be a Gaelic word, as the letter combination "gh" is often utilized in Gaelic languages to indicate the pronunciation of a certain letter.