Where does “Ahééhéshį́į́h” come from?

Ahééhéshį́į́h (Navajo) comes from Navajo -ZHĮ́, from Proto-Athabaskan *šeˑn(ə) — summer.

Ancestry of “Ahééhéshį́į́h”, step by step

StepLanguageWordMeaning
1Navajo-ZHĮ́to become summer, to pass the summer; {|...
2Proto-Athabaskan*šeˑn(ə)summer
Every word from Proto-Athabaskan *šeˑn(ə) →Every word from Navajo -ZHĮ́ →