Alleviate (verb)
Alleviate (al·le·vi·ate | \ ə-ˈlē-vē-ˌāt)
Definition: to make (something, such as pain or suffering) more bearable.
Source: https://www.merriam-webster.com/dictionary/alleviate
Sentence: “Simply acknowledging strangers on the street may alleviate their existential angst; and being acknowledge by others might do the same for us.”