tsuもるmoru
1.

To collect or gather small items in a way that they build up and increase in height, such as snow accumulating on the ground or dust settling on a surface.

2.

To gradually increase in quantity or intensity over time, often referring to emotions or debts that grow gradually and become substantial.

3.

To remain in a certain condition as time passes, indicating a stagnant state of affairs that eventually becomes significant.

4.

To estimate or assess a quantity or amount based on available information, often implying a degree of calculation or judgment in determining a value.

5.

To form an opinion or intuition about someone’s feelings or intentions, suggesting an understanding that goes beyond mere observation.

Example:

塵も積もれば山となる。

みつ見積mitsuもるmoru
1.

To calculate an approximate figure or range for expenses, personnel, or time in advance, providing a preliminary guideline or assessment.

2.

To gauge or assess something based on visual judgment or approximation rather than exact measurements.

Example:

破壊の結果、毎日50種類もの野生の動植物が消滅していると見積もられている。

furitsuもるmoru
1.

To accumulate by falling continuously, especially referring to elements like snow or volcanic ash that layer upon each other over time.

2.

To settle in a thick layer as a result of consistent precipitation, commonly used in the context of snowfall.

Example:

雪がしんしんと降り積もる・・・オレの体に。