"Ethnan" is a rare word that refers to an ancient Irish nobleman. Its proper pronunciation is "ɛθnən," with the first syllable pronounced like the "Eth" in "ethics," the second syllable pronounced like the "an" in "can," and the stress on the first syllable. The spelling of "Ethnan" is phonetically accurate since each letter represents a sound in its pronunciation. While the word may not be commonly used today, it is still used in Irish folklore and history.