degrammaticalization

English

Examples
The strengthening of the Old English inflectional ending -es from being an integral part of the genitive form of a word like fordes to being a clitic -'s which can be separated from the word ford as in a phrase like "the ford I crossed yesterday's location" is an example of degrammaticalization.

Etymology

From de- +‎ grammaticalization.

Noun

degrammaticalization (countable and uncountable, plural degrammaticalizations)

1. The process of degrammaticalizing, of making less grammatical, or of making ungrammatical.
2. (linguistics) The process of language change by which a morpheme (grammeme) is strengthened to become a content word, or otherwise have more lexical content.