Language change is a complex process that is influenced by a variety of factors, including contact between different language communities, changes in the environment, and internal factors such as sound changes and grammatical simplification.

The Great Vowel Shift was a series of sound changes that occurred in English between the 15th and 17th centuries. It resulted in a major shift in the pronunciation of many English vowels.

The loss of the genitive case, the subjunctive mood, and the simplification of verb conjugations are all examples of grammatical simplification that have occurred in English over time.

Lexical borrowing is the process by which a language adopts words from another language. This can happen through contact between speakers of different languages, through trade, or through cultural diffusion.

Lexical attrition is the process by which a language loses words. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Semantic change, semantic shift, and semantic drift are all terms for the process by which a language changes its meaning. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Grammatical change, grammatical shift, and grammatical drift are all terms for the process by which a language changes its grammar. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Phonological change, phonological shift, and phonological drift are all terms for the process by which a language changes its pronunciation. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Syntactic change, syntactic shift, and syntactic drift are all terms for the process by which a language changes its syntax. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Morphological change, morphological shift, and morphological drift are all terms for the process by which a language changes its morphology. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Lexical change, lexical shift, and lexical drift are all terms for the process by which a language changes its lexicon. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Pragmatic change, pragmatic shift, and pragmatic drift are all terms for the process by which a language changes its pragmatics. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Discourse change, discourse shift, and discourse drift are all terms for the process by which a language changes its discourse. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Register change, register shift, and register drift are all terms for the process by which a language changes its register. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.

Style change, style shift, and style drift are all terms for the process by which a language changes its style. This can happen for a variety of reasons, such as changes in the environment, changes in technology, or changes in social customs.