UBUNTU, from Zulu.

Ubuntu is a concept in Bantu philosophy which is commonly translated as humanity or humaneness, but those are rough and don't capture the nuance.

In a bunch of SciFi stories, a robot or alien joins a group of humans. The humans are initially wary of the alien/robot, but they spend time together, bond, and realize that they're not really that different after all. A human says that, while their new friend might not be Homo sapiens, they're definitely human.

Ubuntu captures that whole concept in one word. It refers to the subtle, ineffable qualities which "make us human", as exemplified by our social bonds and how we interact with each other.