I had a neighbour without a name. He was Tiwi. When a member of the tribe, higher on the totem pole than you, dies, then you lose that name for an appropriate m

I had a neighbour without a name. He was Tiwi. When a member of the tribe, higher on the totem pole than you, dies, then you lose that name for an appropriate mourning period. An elder of reknown, with the name, died. The tribe decided that the name would never be taken again, as a matter of respect. So, as a sign of respect, my neighbour gave up his name, permanently. His license and passport have a number, not a name.