cumulate

Oh, it was in the agreement that the intrest should stay and cumulate, he called it.

Sir Charles labored only to heap up the evidences of evolution; to cumulate them till the mass became irresistible.

When electors are allowed to cumulate on individual candidates, the favourites of sections within the party will be elected.

When Ah starts makin' up de berths you kin sweep out de cah an' 'cumulate de sheets an' pillow cases.