かさねる
kasaneru

Ichidan Verb

1. to pile up; to heap up; to stack up; to put on top of another

Transitive
つくえ うえには漫画 まんが ぼん かさねてあった。
tsukueno ueniwa mangahonga kasanete atta.
The comic books were piled on the desk.
Ichidan Verb

2. to repeat many times over; to go through repeatedly; to accumulate

Transitive
かれ悪事 あくじ かさねた。
karewa akujio kasaneta.
He committed one crime after another.