ἔρανος

Etymology
. Traditionally grouped together with and, but Beekes suggests a  origin.

Noun

 * 1) meal to which each contributed his share
 * 2)  feast, festival, banquet
 * 3) loan raised by contributions for the benefit of an individual
 * 4) favour, service, especially one which brings a return
 * 5) permanent association apparently religious in character