Either way, what he actually says is chigi. First syllable is chi (pronounced like English "chee"), second syllable is gi (prononced with a hard g, so like ghee... should probably have been clearer on that one). Whether that is supposed to be Italian, Japanese, complete gibberish, or Quenya, we can only guess - the pronounciation is what we can tell for sure. So it can't be a word that is pronounced differently.