Probably from the same as basis (through the notion of going down; compare bathos); weight; in the New Testament only, figuratively, a load, abundance, authority -- burden(-some), weight.

see GREEK basis

see GREEK bathos

βάρει (barei) − 1 Occurrence

βάρη (barē) − 1 Occurrence

βάρος (baros) − 4 Occurrences