Webster’s Revised Unabridged Dictionary · 1913
Cumulate
Cu′mu·late (k?′m?-l?t), v. t. [imp. & p. p. Cumulated (-l?′t?d); p. pr. & vb. n. Cumulating (-l?′t?ng).] [L. cumulatus, p. p. of cumulare to heap up, fr. cumulus a heap. See Cumber.] To gather or throw into a heap; to heap together; to accumulate.
Shoals of shells, bedded and cumulated heap upon heap. Woodward.