Below you can find the A common theory of the dollar sign's origin is that writing ps as a plural evolved into putting the s over the p; the p stood for this Jeopardy Words Answer. The answer to A common theory of the dollar sign's origin is that writing ps as a plural evolved into putting the s over the p; the p stood for this has 4 letters. This clue belongs to the Please category and is part of Jeopardy Word Level 2164. If you scroll near the bottom you will find other clues and answers part of level 2164