AGnEx 29.4 :ܦܝܫܘܢ ܕܢܘܒܝܣ܂ ܘܓܝܚܘܢ ܢܝܠܘܣ‏ : the Pishon is the Danube and the Gihon the Nile
See the entire entry for gyḥwn n.m. Gihon (river flowing from Eden)