Given the task definition and input, reply with output. This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Passage: According to Jan Nattier, the term Mahayana "Great Vehicle" was originally even an honorary synonym for Bodhisattvayana "Bodhisattva Vehicle." The Astasahasrika Prajnaparamita Sutra, an early and important Mahayana text, contains a simple and brief definition for the term bodhisattva: "Because he has enlightenment as his aim, a bodhisattva-mahasattva is so called." Question: What is an honorary synonym for Bodhisattvayana?
Mahayana