計
ケイ, はか.る, はか.らう, え, かず, け

plot, plan, scheme, measure

JLPT4 G2 S9 F228

十 (gather) + 言# words → speak in plotting → *plot*; *arrange* → *see to*; *handle*; *measure*; *weigh*; *judge*; *determine*; *total*; *accounts*.

[Full Kanji Etymology List]