summate
v. [数]求( ... 的)和； 合计； 总括
过去式：summated 过去分词：summated 现在分词：summating 第三人称单数：summates
近义词：addtogether，sumup，add，addup，total，tot，totup，tally，sum，
英英释义
Verb
- determine the sum of;
"Add all the people in this town to those of the neighboring town"
- form or constitute a cumulative effect