주비

Etymology 1
Short from 주비기장. First attested in Geumyangjamnok (금양잡록/衿陽雜綠) as 주비기자ᇰ, probably referencing to the multitude of grains.

Noun

 * 1) a sort of proso millet

Etymology 2
Probably a relative to Common Turkic or Japanese つわもの thus firstly having a sense of "host", "army", later shifting its meaning into "crowd".