Latin Combining Form: multi- A combining form is a word part that can be added to a word or to another word part such as a root or an affix to create a new word. The Latin combining form multi- means "many" or "much." In the word multitudes, it combines with -tude, another word-forming element that means "state or quality of." Multitudes, thus, means "the state or quality of being multiple or many." Multi- is part of some words that relate to math or science. Write a definition of multiply that demonstrates your understanding of the combining form multi-. Check your answer in a college-level dictionary. Identify and define two other words that include multi- and relate to math or science. Consult etymological references in a dictionary to verify your choices