Late 19th century. From Japanese ryūgi (earlier riugi) way of doing, traditional practice, style or school of art, scholarship, etc. from riu + gi well established standard (from Middle Chinese).
Definition of ryugi in US English:
ryugi
nounrɪˈuːɡi
Ryu.
Origin
Late 19th century. From Japanese ryūgi (earlier riugi) way of doing, traditional practice, style or school of art, scholarship, etc. from riu + gi well established standard (from Middle Chinese).