The spelling of the word "more offlying" can be explained using IPA phonetic transcription. The word can be broken down into three syllables: "more" /mɔr/, "off" /ɔf/, and "lying" /laɪɪŋ/. The "e" at the end of "more" indicates a long vowel sound, while the "ff" in "off" represents a consonant cluster. Finally, the "ying" in "lying" is spelled with a "y" instead of an "i" because it follows a consonant cluster. Overall, the spelling of "more offlying" follows standard English orthography rules.