All languages borrow words from other languages, so it should perhaps come as no surprise that this happens in fictional languages too. In this interesting interview, David J Peterson, the creator of several fictional languages including the Dothraki and Valyrian languages used in the Game of Thrones TV series, explains how fictional languages are not only influenced by real languages but can borrow words from other fictional languages as well. For example, the Dothraki, having no form of writte [...]