Misspeller is spelled [mɪsˈspɛlər], with the stress on the second syllable. The word refers to someone who spells words incorrectly, and is formed by adding the suffix -er to the verb misspell. The phonetic transcription indicates the sounds used to pronounce the word, with the symbols representing the individual sounds in the English language. In this case, the word is pronounced with the short i sound in miss, the short e sound in spell, and the schwa sound in -er.
The word "misspeller" is a combination of the noun "misspell" and the agent suffix "-er".
The noun "misspell" is derived from the verb "spell" which comes from Middle English "spell(en)" and Old English "spellian". "Spellian" originally meant "to recite or tell a story", but over time, it gained the sense of "to write or form words".
The agent suffix "-er" is used to form nouns denoting a person or thing that performs a specific action. In the case of "misspeller", the suffix is added to "misspell" to create a noun referring to a person who misspells words.
So, the etymology of "misspeller" can be understood as: "misspell" (verb) + "-er" (agent suffix) = "misspeller" (noun).