Motility

Motility is a noun that refers to movement or the ability to move. The Latin word motus (MOE toos) means ‘motion.’ This word would later evolve into such English words as mobile and motile, the root word of our word of the day. Here’s an example of motility in use: It was feared the patient had lost all ability to move after the accident, but when she demonstrated motility, this was regarded as great news.