What does Sangamon mean?

Many people ask what Sangamon means? When we started this blog we brainstormed for days on what to name it. We live on Sangamon street in the west loop and the word Sangamon comes from a Pottawatomie word Sain-guee-mon (pronounced "sang gä mun") meaning "where there is plenty to eat." And Chris comes from Sangamon County, so it seemed to fit.