legume; pulse; bean; pea (CL:顆|颗[ke1],粒[li4]) (variant of 豆[dou4])
Pictograph of a stemmed bowl. Based on the original meaning "vessel with a neck". The current meaning is a phonetic loan.
《說文》：“豆，古食肉器也。从口，象形。，古文豆。”
vessel with a neck