accumulatio
From LSJ
Latin > English (Lewis & Short)
accŭmŭlātĭo: (adc.), ōnis, f. accumulo,
I a heaping up, only as t. t. in the lang. of gardening, of the heaping up of earth round the roots of plants, Plin. 17, 26, 39, § 246.
Latin > French (Gaffiot 2016)
accŭmŭlātĭō, ōnis, f., accumulation : Ambr. Virg. 16 || rehaussement d’un arbre : Plin. 17, 246.