The spelling of the word "wast incompetent" may initially appear confusing to some individuals. However, by applying the International Phonetic Alphabet (IPA) phonetic transcription, the spelling becomes clearer. The word "wast" is pronounced as /wɑst/ (wahst), while "incompetent" is pronounced as /ɪnkɑmpɪtənt/ (in-kahm-pi-tuhnt). Combining the two words, we have a phrase pronounced as /wɑstɪnkɑmpɪtənt/ (wahst-in-kahm-pi-tuhnt). This phrase refers to someone who is not skilled or capable in a particular field or profession.
It seems like there might be a mistake or a misunderstanding in the word or phrase you provided, "wast incompetent".
"Wast" is the archaic second-person singular form of the verb "be" in the past tense. This form is no longer used in contemporary English language.
However, "incompetent" has a clear etymology. It comes from the Latin word "incompetentem" which means "inadequate" or "not suitable". The prefix "in-" signifies negation or lack, and "competent" refers to having the necessary skill or ability. Therefore, "incompetent" implies lacking the necessary skill, ability, or qualification to perform a specific task or job.