Cameron had come up with about three dozen words of the Na’vi language at that point in his project document, which was like a quasi-script or a long treatment (“They called it a scriptment,” Frommer said, “and that was a new word to me”) but most of the words were character names.
“It gave me a sense of the sound that he was looking for and then I expanded it. Given these sounds and the possible combinations, what further structure could I bring to the sound to make it interesting,” Frommer said. “That was the starting point. Probably the most exotic thing I added were ejectives, which are these sorts of popping sounds that are found in different languages from around the world. It’s found in Native American languages and in parts of Africa and in Central Asia, the Caucasus. “