from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of gabbai.
Sorry, no etymologies found.
There are also gabbais, milkmen, sandlers, and all the rest.
While nominally the suit is about whether the organization that owns the building, Agudas Chassidei Chabad, or a group of leaders -- gabbais-- elected from the local Chabad community, will have control over the synagogue in the basement of the Rebbe's former residence and the building next door, in fact more is at stake.