Strong's H1521 · Hebrew

Giychown

ghee-khone'

or (shortened) Gichown {ghee-khone'}; from 1518; stream; Gichon, a river of Paradise; also a valley (or pool) near Jerusalem

Scholarly Lexicons

Brown-Driver-Briggs (BDB)

 H1521 גִּיחוֹן ( a bursting forth ) . one of the rivers of Eden . spring of water near Jerusalem  

Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain