This article is about approaches and will give a definition for word formation, synchronic approaches, diachronic approaches, differences between synchronic and diachronic approaches and their similarities and provide some examples. In the 19th century, linguists concentrated on a language's historical features. Their primary focus was on analyzing various languages, how they have evolved over time, and classifying them into language families based on their shared ancestry. This entire field of study falls under diachronic linguistics.