4599. ma'yan (mah-yawn')
or ma ynow (Psa. 114:8) {mah-yen-o'}; or (feminine) ma yanah {mah-yaw-naw'}; from ayin (as a denominative in the sense of a spring); a fountain (also collectively), figuratively, a source (of satisfaction)
fountain, spring, well.
see HEBREW ayin