What is the meaning of Sangu?

An Indian steel spear.

A samurai's armor for the arms, thighs, and shins.

Romanization of ᬲᬗᬸ

imperative of sangi

provision

Romanization of ꦱꦔꦸ

blood

cooked rice

provision

Alternative form of sengi (to trample, to tread)

Source: wiktionary.org