The word "Earst" is not a word in standard English. However, it may be a dialectical variation of the word "east". In IPA (International Phonetic Alphabet) transcription, "east" is pronounced as /iːst/. The addition of the letter "r" does not significantly alter the pronunciation of the word, and it is possible that the spelling "Earst" is simply a regional or personal preference. Nonetheless, it is important to note that this spelling is not considered standard or widely accepted.