My 1974, Pocket Books, Merriam-Webster dictionary lists etc. (and so forth) as the abbrviation of the words "et cetera," which is then defined as meaning, "and others, especially of the same kind." Pronuciation of et cetera is given as: et se'tera. Where the pronuciation, "it cetera" comes from is beyond me, unles it was heard somewhere in the southeast, where a word, such as "pen" can be rendered as "pin," or even "pi'yun."
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