Probably a compact modern form of Katherine-related names, ultimately from Greek meaning pure.
Kethry is probably a compact modern form related to Katherine names, ultimately from Greek roots meaning pure. The spelling gives it a crisp, slightly literary appearance, and it may feel especially familiar to readers of fantasy or modern invented naming styles. Even so, its underlying connection to one of the most durable name families in European history gives it a real traditional backbone.
Kethry sounds unusual but not unstable. It has the clean, compact energy of a shortened form, yet the final shape feels complete rather than clipped. Because of its Katherine connection, it carries an inherited sense of clarity and purity, even if the spelling is new.
In use, Kethry would likely seem thoughtful and distinctive, a name that feels both modern and subtly classical. It has the kind of quiet originality that often appeals to those who want a rare name without losing etymological depth.