Ablaqueatio, ablaqueatiônis. Col. The ridding or clensing of trees in maner aboue mentioned.
Lewis and Short: Latin dictionary
ablăquĕātĭo, ōnis, f. [ablaqueo], a digging or loosening of the soil round the roots of a tree, Col. 4, 4, 2; 4, 8, 2; Plin. 12, 15, 33, 66 al.—II. Concr., the trench itself made by digging, Col. 5, 10, 17 Schneid.