reform aimed at replacing foreign words used in Turkish, especially Arabic- and Persian-based words (since they were in majority when the reform was initiated in early 1930s), with newly coined pure Turkish neologisms created by adding suffixes to Turkish word stems (Lewis, 1999). Can and Patton (2010), based on their observations of the change of a specific word use (more specifically in newer works the preference of ama over fakat, both borrowed from Arabic and meaning "but", and their inverse usage correlation is statistically significant), also speculate that the word length increase can influence the common word choice preferences of authors. Kadochnikov (2016) analyzes the political and economic logic behind the development of the Russian language. Ever since the emergence of the unified Russian state in the 15th and 16th centuries the government played a key role in standardizing the Russian language and developing its prescriptive norms with the fundamental goal of ensuring that it can be efficiently used as a practical tool in all sorts of legal, judicial, administrative and economic affairs throughout the country. Quantification Altintas, Can, and Patton (2007) introduce a systematic approach to language change quantification by studying unconsciously used language features in time-separated parallel translations. For this purpose, they use objective style markers such as vocabulary richness and lengths of words, word stems and suffixes, and employ statistical methods to measure their changes over time. Language shift and social status Languages perceived to be "higher status" stabilise or spread at the expense of other languages perceived by their own speakers to be "lower-status". Historical examples are the early Welsh and Lutheran Bible translations, leading to the liturgical languages Welsh and High German thriving today, unlike other Celtic or German variants. For prehistory, Forster and Renfrew (2011) argue that in some cases there is a correlation of language change with intrusive male Y chromosomes but not with female mtDNA. They then speculate that technological innovation (transition from hunting-gathering to agriculture, or from stone to metal tools) or military prowess (as in the abduction of British women by Vikings to Iceland) causes immigration of at least some males, and perceived status change. Then, in mixed-language marriages with these males, prehistoric women would often have chosen to transmit the "higher-status" spouse's language to their children, yielding the language/Y-chromosome correlation seen today. See also Calque Dialect continuum Grammaticalization Koiné language Language transfer Morphemization Neologism Origin of language Phono-semantic matching