Adverbforming
Adverbforming is the study and practice of creating adverbs within a language. It encompasses various morphological processes—such as affixation, conversion, and compounding—as well as periphrasis and, in some cases, suppletion. Adverbs typically modify verbs, adjectives, or other adverbs and express manner, time, frequency, degree, or place.
In English, the most productive path is suffixation: many adjectives form adverbs with the suffix -ly (quick
Cross-linguistically, adverbformation varies widely. Romance languages commonly form adverbs by adding -mente to the feminine form