It is Spring! For the northern hemisphere, technically, Spring is underway. However, in the Navajo sense of the word, Spring doesn’t quite begin until the Winter storms have subsided and new growth starts becoming widespread.
In regards to the etymology (the word’s origin and development), dąą may be connected to the group of phrases that refer to the early phase of growth or fertility. But we’ll leave it at that since many Navajo only count three seasons, making it harder to pinpoint the origin.