the world > matter > properties of materials > temperature > coldness > [adjective] > made cold or cool > frozen > frozen hard (3)
Of the soil or ground: hard, unyielding; esp. hardened with frost or ice. Also: characterized by such conditions. Cf. iron-bound, adj. 4 Now rare.
Of the soil or ground: hard, unyielding; esp. hardened with frost or ice. Now rare.