naałniih yichʼą́ą́h naabaahígíí

== Navajo == === Etymology === naałniih (“infectious disease”) + yichʼą́ą́h (“preventing it”) + naabaah (“fights”) +‎ -ígíí (nominalizer) === Noun === naałniih yichʼą́ą́h naabaahígíí (anatomy) immune system ==== Derived terms ==== naałniih yichʼą́ą́h naabaahígíí bąąh dahooʼaahgo (“AIDS”)