Reconstruction:Proto-Germanic/arbaz

Etymology
From Pre-Germanic, from.

The inherited meaning "orphan" likely gave way to "worker", probably from orphans being used for forced labor by their caretakers, which is also implied by the Slavic meaning "servant, slave". In this context it is not hard to see a connection with 🇨🇬, probably through a verb.

Noun

 * 1) working-animal, ox; worker