The word "race" is defined as "the act of running," "a contest of speed," or the verb associated with these nouns, according to the Merriam-Webster dictionary. "Race" can also mean "a set course or duration of time" or "a family, tribe, people, or nation belonging to the same stock."
"Race" has other definitions that aren't commonly used in modern vernacular, including "a track or channel in which something rolls or slides" or "a distinctive flavor." An obsolete definition for the word is "an inherited temperament or disposition." The medical definition of race is "an actually or potentially interbreeding group within a species." The form of the word that means "to run" originated from an Old Norse word, whereas the medical definition form comes from an Old Italian word.