Galard

Galard is a fictional language created by K.A. Applegate and is the common intergalactic language spoken by races in Animorphs. Galard was said to be the language of interstellar trade and commerce, used by many races back when the galaxy was at peace. It was learned by the Yeerks after they invested several Ongachic hosts and used as the lingua franca of the Yeerk Empire as the Yeek language was impossible to speak.