Definition: The word 'msus' originally referred to a small or insignificant group within a larger community, often related to ancient societies. It's commonly used as an adjective in Middle English, meaning something that is not significant, usually pertaining to smaller groups or individuals. A 'msus' typically refers to a small number of people who gather around a common cause or activity, which could range from small villages or tribes to entire cities or even entire nations. Now, if you mean 'masses' as in "millions", it's not clear. If someone says 'one millimeter', it probably means about 10 nanometers (nm), and would be more accurate for a smaller measurement like this one, but it may still refer to the mass of people or something else. If you're looking for something that might mean 'large numbers' or 'many hundreds of thousands of' in relation to a large number, then 'msus' seems like an accurate word choice.