seicht, adj., ‘low, shallow, flat,’ from MidHG. sîhte, adj., ‘low, shallow’; OHG. *sîhti not recorded; probably allied to sinken, hence lit. ‘where the water has sunk into the ground,’ or ‘that which has sunk, or is low’; scarcely akin to seihen, lit. ‘where it gently flows’?.