a, m. [akin to heyrum, q. v., and not to be derived from heyra; cp. Engl. hireling; A. S. hyrigman, hyrling = domestic retainer]:—a Norse law term, a neighbour, a domestic; it appears almost to answer to Icel. búi; þá skal hann á þing leiða heyringja sína (as witnesses), N. G. L. i. 21; settu þeir tólf manna dóm eptir ok tvá heyringja, ok létu dæma, D. N. ii. 4.