We don't have synonyms for accumulates yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are accumulate, accumulated and accumulator.
(v) :
(intransitive) To gradually grow or increase in quantity or number.
(v) :
(transitive) To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively), often gradually and without active intent.
(v) :
(education, dated) To take a higher degree at the same time with a lower degree, or at a shorter interval than usual.
(v) :
(intransitive) To gradually grow or increase in quantity or number.
(v) :
(transitive) To heap up in a mass; to pile up; to collect or bring together (either literally or figuratively), often gradually and without active intent.
(v) :
(education, dated) To take a higher degree at the same time with a lower degree, or at a shorter interval than usual.