Webster's Revised Unabridged Dictionary · 1913

Geest

Geest , noun

[Compare LG. geest, geestland, sandy, dry and, OFries. gēst, gāst, gēstlond, gāstlond, from Fries. gāst barren. Compare Geason.]

Alluvial matter on the surface of land, not of recent origin. — R. Jameson