Editing Linguistics (section)

=== Suppletion ===
This concept represents an '''irregular''' way to form word variants, such as different tenses of a verb or comparative and superlative forms of an adjective. Unlike regular morphological processes that add, modify, or replace affixes while keeping the base of the word recognizable, suppletion involves using ''entirely different roots'' to express grammatical or semantic relations. This process results in word forms that cannot be predicted from the form of the base word and must be memorized as separate lexical entries.

Suppletion is highly irregular and constitutes an exception to the normal morphological rules of a language. The suppletive forms bear no phonological or morphological resemblance to their base forms. It is therefore relatively rare and typically affects a small set of commonly used words within a language: often verbs, adjectives, and pronouns. Despite its irregularity, suppletion serves regular grammatical functions, such as tense, number, or degree of comparison.

One of the most well-known examples is the verb "to go" in <u>English</u>, which forms its past tense as "went," a word originally derived from the <u>Old English</u> verb "wendan" (to turn). Thus, "go" and "went" demonstrate suppletion. The adjectives "good," "better," and "best" in <u>English</u> show suppletion, where "better" and "best" do not derive from "good" through regular morphological processes. In many languages, '''personal pronouns''' exhibit suppletion. For example, in <u>English</u>, the forms "I," "me," "my," and "mine" are related through meaning and function but not through form.

Suppletion is found across a wide range of languages, indicating that it is a common, though irregular, linguistic phenomenon:

* <u>Latin</u>: "To be" shows suppletion with "sum," "es," "est" (present) and "fui" (perfect).
* <u>Spanish</u>: "To go" is "ir," but its future stem is "ir-" and the past stem is "fu-," as in "fui" (I went).
* <u>Russian</u>: "To go" has "идти" (idti) in the present tense and "пойти" (pojti) in the future tense.

Suppletion is often explained as the result of '''historical linguistic evolution''', where words from different etymological sources merge over time due to similar meanings or functions. These changes are usually driven by frequent use, '''phonological erosion''', and the natural tendency for languages to '''regularize''' irregular forms, leaving only a few highly irregular suppletive forms. Linguists study suppletion to understand language change and the balance between irregularity and the drive for regular grammatical patterns. Suppletion often arises historically from different '''lexical sources''' merging into the grammatical system of a language.