The spelling of the word "earsing into" can be explained using the International Phonetic Alphabet (IPA). The word is spelled as /ɪərsɪŋ ˈɪntuː/. The phonetic transcription shows that the word has two syllables, with the stress on the first syllable. The first syllable is pronounced with the vowel sound /ɪə/, which is a combination of the short 'i' and the schwa sound, while the second syllable is pronounced as /ɪntuː/. The word means to irritate or nag persistently, and is not commonly used in modern English.