The Collaborative International Dictionary
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.
Wiktionary
vb. (present participle of cumulate English)
Usage examples of "cumulating".
The Nameless One added to himself in cornea-thin slivers, cumulating in the darkness like rotting meat growing mold.
And you cannot see what I have felt: the punctured kidney, the compressed chest organs, the poisons cumulating in her liver, the rapid beat of her heart.
He felt the power cumulating in her, felt her pull what she needed from the air.
It was all part of the message she was cumulating for them, in word, gesture, and subtext.
This litany, repeated twelve times, had a cumulating effect of irritation on Challee and on the court.