sumować

Etymology
From.

Verb

 * 1)  to sum
 * 2)  to summarize
 * 3)  to add up to, to aggregate
 * 4)  to foot up, to stack up, to sum up
 * 5)  to be troubled, to grieve, to worry
 * 1)  to foot up, to stack up, to sum up
 * 2)  to be troubled, to grieve, to worry
 * 1)  to be troubled, to grieve, to worry