Where does “đậu ngự” come from?

đậu ngự (Vietnamese) comes from Vietnamese ngủ, from Chinese 伍, from Chinese 亻, from Chinese 工.

đậu ngự (Vietnamese): lima bean

Definitions

đậu ngự traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Vietnamese	ngủ	to sleep
2	Chinese	伍	—
3	Chinese	亻	—
4	Chinese	工	—

Step	Language	Word	Meaning
1	Vietnamese	đậu	bean; nut; to park
2	Vietnamese	đậu phụ	tofu
3	Chinese	豆腐	tofu; bean curd; any food with tofu-like physical...