Periphrase

In linguistics, periphrasis (IPA British English /pᵻˈrɪfrəsɪs/, U.S. English /pəˈrɪfrəsɪs/) is a device by which grammatical meaning is expressed by one or more free morphemes (typically one or more function words accompanying a content word), instead of by inflectional affixes or derivation. Periphrastic forms are analytic, whereas the absence of periphrasis is a characteristic of synthesis. While periphrasis concerns all categories of syntax, it is most visible with verb catenae. The verb catenae of English are highly periphrastic.

The distinction between inflected and periphrastic forms is usually illustrated across distinct languages. However, comparative and superlative forms of adjectives (and adverbs) in English provide a straightforward illustration of the phenomenon. For many speakers, both the simple and periphrastic forms in the following table are possible:

The periphrastic forms are periphrastic by virtue of the appearance of more or most, and they therefore contain two words instead of just one. The words more and most contribute functional meaning only, just like the inflectional affixes -er and -est. The distinction is also evident across full verbs and the corresponding light verb constructions:

The light verb constructions are periphrastic because the light verbs (give, take, have) have little semantic content. They contribute mainly functional meaning. The main semantic content of these light verb constructions lies with the noun phrase.

Distinctions of this sort abound across languages. The following table provides some examples across Latin and English:

Periphrasis is a characteristic of analytic languages, which tend to avoid inflection. Even strongly inflected synthetic languages sometimes make use of periphrasis to fill out an inflectional paradigm that is missing certain forms. A comparison of some Latin forms of the verb dūcere 'lead' with their English translations illustrates further that English uses periphrasis in many instances where Latin uses inflection.

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