Adverbille

Adverbille is a term sometimes used to describe a specific type of coinage or neologism. It generally refers to a word that is formed by adding the adverbial suffix "-ille" to an existing word, often an adjective or noun. This suffix is not a standard or widely recognized part of English morphology, unlike common adverbial suffixes such as "-ly" or "-ward."

The usage of adverbille is rare and often found in informal contexts, creative writing, or as a playful linguistic experiment. The intention behind creating an adverbille is typically to imbue the base word with a sense of manner, condition, or intensity, similar to how traditional adverbs function. For example, one might hypothetically construct "quickille" to mean "in a quick manner" or "sadille" to mean "in a sad manner."

However, due to its non-standard nature, words ending in "-ille" are not generally accepted in formal English and may be met with confusion or be perceived as ungrammatical. The creation and understanding of such words rely heavily on context and the shared understanding between the speaker/writer and the listener/reader. It is more of a linguistic curiosity than a functional part of the English language.