The spelling of the word "Mestayer" is pronounced /mɛˈsteɪjər/. This word is not commonly used in modern English, but it is a surname of French origin. The phonetic transcription breaks down the pronunciation into individual sounds, such as the short "e" sound in "mest" and the long "a" sound in "ayer." The spelling of this word reflects the various vowel and consonant sounds in the French language, which can differ from English.
"Mestayer" is not a word present in standard English dictionaries, and therefore there is no agreed definition available. It is possible that "Mestayer" may be a proper noun, a surname, or a lesser-known term specific to a certain region, community, or industry. In such cases, the meaning and usage of "Mestayer" may not be widely recognized or documented.
To gain a more accurate understanding of the term, it is recommended to provide additional context or details surrounding its usage. This could include language origin, specific field or community where the word is used, or any other relevant information that might help in determining its meaning. With more information, a detailed definition or explanation specific to the context of "Mestayer" can be provided.