What does root mean?
Root most directly denotes the underground part of a plant, the structure that steadies the plant and draws water and minerals from the soil. From this physical idea comes the widespread metaphorical use of root for a source, origin, foundation, or fundamental cause: one may speak of the roots of a tradition, the root of a problem, or the root cause of an event. Root also has established technical meanings in mathematics, computing, and linguistics. In mathematics it refers to a value related by multiplication to a given number; in computing it can mean the top directory of a file system or an account with unrestricted administrative authority; and in linguistics it is the earlier form from which words develop. As a verb, root can mean digging up a plant, causing an idea or practice to become established, searching for information, or cheering for a team. Its enduring appeal lies in the vivid image of foundations that remain hidden while supporting everything above them.
The underground part of a plant that anchors it and absorbs water and minerals; more broadly, a source, origin, fundamental cause, or base from which something develops. It also has specialized meanings in mathematics, computing, and linguistics.
"The policy's economic roots can be traced to the nineteenth century."
The metaphorical senses are very common. Computing uses such as root directory and root account are technical, while roots may refer informally to ancestry or cultural origins.
To cause something to become established or to take hold, as when an idea roots itself in a community. It can also mean to dig up a plant or its roots, to search for information, or to cheer strongly for someone.
"The movement gradually took root among young voters."
The informal phrase root for is common, particularly in British and American English.
The standard plural of the noun, used for plant structures, origins, ancestral connections, mathematical values, and other countable senses.
"The seedlings developed strong roots in the rich soil."
The word root comes from the same ancient Indo-European family as radical and radius, giving new life to the idea of branching out.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does root come from?
The English word descends from Old English rōt, inherited through Proto-Germanic and ultimately connected with the Indo-European root associated with “root” or “branch.” Its botanical meaning was extended to “source” and “origin.” A related Latin word, radix, is the source of forms such as radical, radius, radish, and radial.
Related word forms
How root is actually used
The metaphor of roots is common in discussions of origins, causes, identity, and cultural heritage. In computing, root is specialist jargon for an administrator account or the top level of a file system; root for, meaning to cheer strongly for someone, is informal.
Easily confused with root
A root is an underground plant structure or a source, whereas a route is a path or course.