The spelling of the phrase "typist errors" is straight forward, with the exception of the "st" cluster in the middle. The IPA phonetic transcription for "typist" is /ˈtaɪpɪst/, where the "t" sound and the "p" sound are pronounced separately, but the "s" and "t" sounds blend together to create a voiceless alveolar affricate sound represented by /t͡s/. Therefore, when spelling "typist errors", care must be taken to include both the "s" and "t" sounds in the correct order so as not to make a spelling mistake.
The term "typist errors" does not have a specific etymology, as it is a combination of two words: "typist" and "errors".
"Typist" is derived from the word "type", which refers to the process of printing or writing using a typewriter or keyboard. The word "type" itself originated from the Latin term "typus", which means "figure or type of letter".
"Errors", on the other hand, comes from the Latin word "error", which means "wandering" or "straying". It has been used in English since the 14th century to describe mistakes, inaccuracies, or deviations from what is correct or expected.
Therefore, "typist errors" simply refers to mistakes made by a typist while typing or transcribing information.