地名　遠浅／Toasa／toa-sam(沼・の奥＝swamp, the other side)／to-sam(沼・の端＝swamp, the edge)ちめい　とあさ

Toasa / toa-sam (＝swamp, the other side) / to-sam (＝swamp, the edge), from the Series Place Name