Hashk’aan is the Navajo word for banana.
If you were wondering how the Navajo people have a word for a fruit that isn’t native to the region, it’s because hashk’aan is also a word for the fruit of the yucca plant. The yucca plant itself is something that is abundant across the desert region.
Additionally, if you were to say Hashk’aan hadzohí you’d be referring to one of the Navajo clans. This translates approximately to yucca-fruit-strung-out-on-a-line.