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Cognomen Nonjaca (Nonjaca ) , all over the world, is a very rare family name. The cognomen Nonjaca is habitual in Sub-Saharan Africa, particularly South Africa, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nonjaca | South Africa |
Atha, Khaya, Gcina, Zubagcine, Bulelwa, Nombeko, Thuliswa, Ntombentle, and Ntombekhaya