Feminine form derived from English "oath," meaning a solemn promise.
Oatha is a feminine form derived from the English word oath, meaning a solemn promise. That gives the name a virtue-based seriousness, linking it to fidelity, commitment, and spoken honor.
The name feels direct and unusual in a way that makes it memorable. It has a quiet strength, and its rarity helps the meaning stand out more clearly than it might in a more common name. In use, Oatha reads as rare, dignified, and conceptually clear.