 Following the expulsion of the Jesuits in the 18th century, the residents of the reductions gradually migrated north and west towards Asunción, a demographic shift that brought about a decidedly one-sided shift away from the Jesuit dialect that the missionaries had curated in the southern and eastern territories of the colony.By and large, the Guarani of the Jesuits shied away from direct phonological loans from Spanish.Instead, the missionaries relied on the agglutinative nature of the language to formulate calque terms from native morphemes.