The Burmese language belongs to the Tibeto-Burman group ... simplest things we must combine words of different meanings. In English, for example, you have separate root-terms for "sheep," "ewe ...
Just before we start, Myanmar and Burma (old name) are the same. Zawgyi, on the other hand, refers to the non-Unicode typeface for the Burmese script. So when we say Burmese Keyboard or Zawgyi ...