～流
～りゅう · ～ryuu · JLPT N2 · noun
manner
🌊 流 = flow; ～流 is the way something flows, so its style or manner
The kanji 流 means to flow, or a current. Added to the end of a word, it names a style or school, the current a method follows: 日本流 is the Japanese way, and 自己流 is your own way of doing something.
流 — water radical 氵 + 㐬 (phonetic, child being born)
流 is a semantic-phonetic compound. The water radical 氵 gives the meaning, while 㐬 depicts an infant being born head-down with amniotic fluid, suggesting downward flow. Together they convey water flowing, and by extension 'to flow' or 'current'.