The word Ahéhee translates smoothly from Navajo to English. It literally means thank you, or I feel grateful, in Navajo.
ahééh -- means gratitude or thanks, apreciation
ahééh nisin --I am grateful ( nisin means to think or to have in mind to want to). baa ahééh nisin-- I am gratful for it.
Ahéhee lą́ą' -- thanks a lot