yaaʼ

== Navajo == === Etymology === From Proto-Athabaskan *yaʔ. === Noun === yaaʼ (possessed form biyaʼ) louse, tick, mite, flea (by extension) parasite ==== Inflection ==== ==== Derived terms ==== neeshchʼííʼ biyaʼ === References === == Western Apache == === Alternative forms === yáá === Noun === yaaʼ sky