Definition of "simplify"

In ancient times there existed in the region of the Tung-chia River 佟佳江 in present Liaoning a people called Kao-chü-li 高句驪. In the fifth century they moved their capital to P’ing-jang. The name of the country was simplified to Kao-li 高麗 (Korea).

1949, Karl August Wittfogel, Fêng Chia-Shêng, “Translation: Tribes”, in History of Chinese Society Liao (907-1125)‎, American Philosophical Society, page 104

Quizzed on simplifying fares, Heaton-Harris said the Government had inherited a "mix of ticketing and unbelievable, interesting fares up and down the system, and we do want to simplify them".

2021 October 6, “Network News: Lords hear fares and ticketing are key areas for improvement”, in RAIL, number 941, page 22

Thus, throughout the nineteenth century, linguists generally held that more grammatically complex languages were older and that languages tended to simplify over time—the four grammatical cases of German as contrasted with the seven of Latin, for example.

2006, Karen Oslund, “Reading Backwards: Language Politics and Cultural Identity in Nineteenth-Century Scandinavia”, in David L. Hoyt, Karen Oslund, editors, The Study of Language and the Politics of Community in Global Context‎, Lexington Books, page 126