累积 累積
Stroke order
Show the animation Stroke data from Make Me a Hanzi, derived from the Arphic PL fonts under the Arphic Public License.
Show the animation 
Stroke data from Make Me a Hanzi, derived from the Arphic PL fonts under the Arphic Public License.
How it used to be written
累
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Clerical script 西漢 -
Clerical script 東漢 - See all 3 forms
积
These are the forms of 積, the traditional character: 积 is a twentieth-century simplification, found in no ancient corpus.
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Bronze script 商代晚期 -
Clerical script 東漢 - See all 7 forms
Forms, sources and dates: the 字形演變 database of 小學堂, Academia Sinica, public domain (CC0).