A / argillōsus
adjective

argillōsus

fem. argillōsa · neut. argillōsum
full of clay; abounding in clay
full of clay, abounding in clay: terra, Varr. R. R. 1, 9, 2; so Plin. 12, 14, 30, § 31, and Vulg. 3 Reg. 7, 46; ib. 2 Par. 4, 17: collis, Col. Arb. 17.