流石
さすが · sasuga · JLPT N2 · adverb
indeed
🪨💧 流 flow + 石 stone: even a stone flows, so truly, as one would expect
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'.