Correct spelling for the English word "startest" is [stˈɑːtəst], [stˈɑːtəst], [s_t_ˈɑː_t_ə_s_t] (IPA phonetic alphabet).
The word "startest" does not have an established etymology as it seems to be a combination of the verb "start" with the second-person singular present tense suffix "-est" used in certain verb forms in archaic English. "Start" comes from the Old English word "styrtan", meaning "to jump up" or "to leap". Over time, the word evolved and began to be used more broadly to refer to beginning or commencing an action. However, "startest" itself does not have a distinct etymology since it is not a widely recognized or commonly used word.