a. [UNDER-2.] Of earth or soil: Situated or found below the turf.
1675. Evelyn, Terra (1676), 14. The fatness of this Under-turf Mould.
1695. Woodward, Nat. Hist. Earth, I. 12. That blackish Layer of Earth or Mould which is called by some Garden-Earth, by others Vnder-turf-Earth.
1765. Museum Rust., IV. 156. A tree … round the roots of which some under-turf earth was piled.
