The spelling of the word "Yarnen" can be explained using International Phonetic Alphabet (IPA) phonetic transcription. The initial consonant /j/ is followed by the long vowel /ɑː/ and the consonant cluster /rn/. The final sound is a reduced vowel /ən/, which adds an unstressed syllable to the word. "Yarnen" is a unique word that may not be familiar to all speakers of English, but the IPA transcription can help us understand how to say it correctly.