Syr-RomLaw.44.4 :ܘܢܐܡܘܢ ܒܡ̈ܘܡܬܐ ܬܪ̈ܝܗܘܢ ܓܒ̈ܐ‏ : those two sides [to the contract] shall swear by oath
See the entire entry for gaḇ (geḇ), gabbā n.m. side, flank: