Sino-Vietnamese word from 兌, which is typically read as đoái.
đoài
- (Taoism, cosmology) the second trigram (☱) of the eight trigrams (representing marsh, metal, southeast and then west).
- (obsolete, archaic) west
- Võ Thanh An, Quả Ngọt Cuối Mùa, line 7
- Nom đoài rồi lại ngắm đông
- Looking to the west then to the east