The name Erech comes from the Hebrew verb (arak) meaning to be long, to prolong (Genesis 26:8, Ezekiel 12:22). The derivative (orek) means length and long (Genesis 6:15, Zechariah 2:2). The verb is most often used in the formula, "...that  you may prolong your days in the land." (Exodus 20:12, Deuteronomy 4:26)
The name Erech means Length (Jones' Dictionary of Old Testament Proper Names) or Size (NOBS Study Bible Name List).
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