Likely a variant of Katina or Katherine, from Greek roots meaning "pure."
Catenia is likely a variant of Katina or Katherine, drawing on the Greek root meaning pure. Like many reduced or reshaped forms in the Katherine family, it keeps the classical core while moving toward a lighter, more distinctive sound.
The name feels delicate and uncommon, with a soft ending that makes it seem almost ornamental. Catenia has the atmosphere of a diminutive that grew into its own identity. It is rare enough to feel invented, yet the familiar Katherine lineage gives it historical depth. That combination of old root and fresh sound is what gives it appeal.