🔼The name Me-jarkon in the Bible
The name Me-jarkon occurs only one time in the Bible. It's the name of a city located in the territory assigned to the tribe of Dan (Joshua 19:46).
Actually, the name of this place isn't really Me-jarkon, it's Me-hayarkon, and it's unclear why translators choose to omit the definite article in front of the jarkon-part.
🔼Etymology of the name Me-jarkon
The name Me-jarkon consists of two elements. The first part is an assimilated version of the noun מים (mayim), meaning waters:
The second part of the name Me-jarkon is the same as the adjective ירקון (yeraqon), literally meaning a green thing, from the root ירק I (yaraq I):
The name Me-jarkon probably means something like Green Waters, but note that it is mentioned together with the related name Rakkon.
For a meaning of the name Me-jarkon, NOBSE Study Bible Name List reads a rather elaborate Waters Of Yellow Color. Jones' Dictionary of Old Testament Proper Names has the evenly peculiar Water Of Great Greenness. BDB Theological Dictionary does not interpret our name but does list it under the verb ירק I (yaraq I), meaning to be green.