積み重なる つみかさなる Also written 積重なる Meanings Godan verb, Intransitive to pile up; to stack up; to accumulate Kanji 積 pile up. Read as つむ. 重 heavy. Read as かさなる. Common phrases 岩が積み重なる Related forms 積み重ねる (つみかさねる) to pile up (transitive partner) Jinuma: Japanese Dictionary · Word lists