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Veanne
Since: Jul, 2012

In a book written primarily in one language with characters that speak another language, the author translates some of the dialog while leaving other phrases untranslated. In-universe, the character isn't shifting languages, but it appears so in the way the dialog is written. Typically done intentionally for flavor.
Example: "'Ay, dios mios!', Carla said. 'Let's get going', she said in Spanish. "
Is this Gratuitous Foreign Language or something more specific?