Root (linguistics)

A root (also known as a root word or radical) is the basic part of a word. It cannot be broken down into smaller, meaningful parts.

In morphology, a root is a simple part of a word. It can stand alone, or a prefix or a suffix can be added to it. The root word is the most important lexical part of a word and of a word family. It carries meaning and cannot be made smaller.

Content words in most languages have, or are made up of, root morphemes. The word "root" is also used to mean the word without its inflectional endings, but with its lexical endings. For example, chatters has the inflectional root or lemma chatter, but the lexical root chat. Inflectional roots are often called stems.

Roots are used to make new words by adding affixation and compounds. In polysynthetic languages with lots of inflectional changes, "root" often means "free morpheme". Some languages, like Yup'ik, have only a few morphemes that can stand alone as words.

Roots are sometimes written with the radical symbol ⟨√⟩ to make them clear from other words that sound similar. For example, √bhū- means the Sanskrit root bhū-.

Examples

The English verb running has the root run, which can be used by itself. In Spanish, the word amplísimo has the root ampli-, but it needs extra parts to be used alone. English often uses words that are the same as their roots, like run, but sometimes it uses roots that need extra parts, like -rupt in interrupt. These roots only appear with prefixes, like in disrupt or corrupt.

Some languages, like Hebrew, use special roots made from consonants. For example, the Hebrew root ג-ד-ל (g-d-l) relates to ideas of size. From this root, many words are created by adding different vowels, such as gadol meaning "big" and gadal meaning "he grew". These consonant roots help us understand the history and relationships between words in a language. Roots and reconstructed roots are important tools in etymology.

Secondary roots

Secondary roots are words that come from changing a root word slightly to give it a new meaning. For example, in English, the word conductor comes from the root word to conduct.

In languages like Arabic and Hebrew, secondary roots are very important. They are made by changing the vowels in the root word or by adding prefixes and suffixes.

In Arabic, the root word ر-ك-ز (r-k-z), meaning "plant into the earth," can become many different words with related meanings. Similar processes happen in other Semitic languages such as Hebrew, Syriac, Aramaic, Maltese language, and Amharic. One root can create many words with related ideas.

Category-neutral roots

Some theories say roots are "category-neutral." This means they don’t have a fixed job like a noun or verb. Their meaning depends on how they are used in a sentence. For example, in English, the same root can be a noun or a verb without adding extra endings.

In Hebrew, most roots are made of consonants, like √š-m-n (ש-מ-נ). Their meaning changes based on the pattern they follow. This root can mean something about greasy or fatty material. Languages differ in how they treat roots. English usually gives one meaning to a root, while Hebrew can give a root several meanings. This can affect how people learning these languages understand new words.