積

to amass / to accumulate / to store / measured quantity (such as area of volume) / product (the result of multiplication) / to integrate (math.) / to solve (or integrate) an ordinary differential equation (math.) / old / long-standing

cereal / grain

duty / responsibility / to reproach / to blame

to accumulate merit / to do good / to give to charity / virtuous actions

to pile up / to accumulate without being dealt with

grievance / accumulated rancor

to stockpile

cumulative weakness / to decline (over time) / degeneration

deep rooted and influential

lit. piling up dirt eventually creates a mountain (idiom) / fig. success is the cumulation of lots of small actions

deeply accumulated filth

(idiom) many little things add up to sth great; many little drops make an ocean

for a long time / over many years / old / advanced in age

year in, year out (idiom) / (over) many years

age-old (malpractice) / long established (corrupt practices) / deeply rooted (superstition)

to accumulate merit and virtue

accumulated evil

Accumulated evil will be repaid in suffering (idiom).

constant of integration (math.)

integral equation (math.)

table of scores (in exams or sports league)

integral transform (math.)

to accumulate work causes sickness (idiom); to fall ill from constant overwork