Editing Linguistics (section)

=== Compounding ===
A morphological process involving the combination of two or more '''lexemes''' (independent words) to form a <u>new word</u>. The resulting '''compound word''' typically acquires a meaning that is distinct from, but related to, the meanings of its constituent parts. Compounds can be formed from various combinations of parts of speech, including nouns, adjectives, verbs, and adverbs, among others.

* Two '''nouns''' are combined to form a new noun. For example, "toothbrush" (tooth + brush) or "bookcase" (book + case).
* An '''adjective''' and a '''noun''' are combined, usually to describe a specific type of the noun. Examples include "blackboard" (black + board) or "greenhouse" (green + house).
* A '''verb''' and a '''noun''' are combined, often describing an action related to the noun. For instance, "pickpocket" (pick + pocket).
* Two '''verbs''' are combined to describe actions that are done together or in sequence. This is less common in some families but can be seen in some <u>South Asian</u> languages.

The compound often represents a concept or entity that is <u>semantically unified</u>, which means its overall meaning cannot always be directly inferred from the meanings of its parts. Compounding can involve <u>morphological</u> changes (such as the modification of roots) or <u>phonological</u> changes (such as stress shifts) to mark the compound status, or aid in pronunciation. Once words are compounded, the new formation behaves as a single unit syntactically. It takes on the grammatical roles as one word, and its internal structure is not affected by syntactic operations that affect phrases.

Compounds typically have a '''head''', the part that determines the overall category and grammatical properties of the compound. The position of the head varies across languages; for example, in <u>English</u>, the head is usually on the right ("toothbrush" is a type of brush), whereas in <u>Japanese</u>, it is typically on the left (電話 "denwa," phone, is literally "electric + talk").

'''Endocentric compounds''' have a head that provides the compound with its basic meaning and category ("blueberry" is a type of berry). '''Exocentric compounds''' lack a clear head, and the compound does not belong to the category of any of its parts ("pickpocket" is not a type of pocket). The rules governing compounding and the productivity of this process vary widely among languages; some are highly compounding, creating many new words through this process, while others use it much more sparingly.

The semantic relationship between components of a compound can vary greatly and is often not explicitly marked, which can lead to a wide range of interpretations based on cultural or contextual knowledge.