New word formation
Borrowing
Compounding
Blending
Affixation
Backformation
Clipping
Coinage/ negloisms
Acronyms/ initialisms
Use of trade names
Semantic Change
Amelioration
Pejoration
Sematic Shift
Semantic broadening/ narrowing
Reasons for Change
Social Change
Technology
Fashion
Youth Culture
Influence of foreign cultures/ globalisation
Media, politics/ current affairs
Spread of Changes
Substratum Model
Wave Model
Random Fluctuations Model
S-curve model
History and development of English Language: Before 1600
History and development of English Language: Renaissance
History and development of English Language: 17th - 19th centuries
History and development of English Language: Modern times