KALDERASH. BtVS Intertext/Allusion. 

With the arrival of her Uncle Enyos in "Surprise" (2013), Jenny Calendar's true identity, and reason for being in Sunnydale, is revealed.

ENYOS: You thought what? You thought you are Jenny Calendar now? You are still Janna, of the Kalderash people! A Gypsy.

JENNY: I know . . . Uncle. I know.

Kalderash (also means "coppersmith" in Romany) is one of the better-known of the gypsy tribes or nations.

--Jennifer Dowling.