What is the meaning of the word "aba"?

Definitions:

A fabric woven from the hair of camels or goats. noun
- She draped her elegant aba over her shoulders.
A loose sleeveless outer garment worn as traditional dress by men in the middle east. noun
- The rabbi's aba was adorned with intricate embroidery.
Abbreviation for Applied Behavior Analysis, which is a therapy based on the science of learning and behavior. ABBREVIATION
- The therapist used ABA techniques to help the child with autism improve their social skills.