phải

Etymology
(Old Chinese: in, along the semantic evolution of “to have to endure; to suffer” > “have to; must” > “correct” > “right (in direction)”. It may reflect an Old Chinese pronunciation  with the loss of a nasal prefix as is also seen in other early loans (Sagart, per. comm.).

The common Vietic word for “right” is 🇨🇬, whence the now-archaic.

Adjective

 * 1)  right side, direction (in bên phải)
 * 2) correct
 * 3) obverse
 * 1) correct
 * 2) obverse
 * 1) obverse

Verb

 * 1)  must, have to, should
 * 2)  to have to endure (something unpleasant)
 * 1)  to have to endure (something unpleasant)
 * 1)  to have to endure (something unpleasant)

Particle

 * 1) yes