澎

A phono-semantic compound:

水 — “water,” semantic component, indicating the character belongs to the domain of liquids, waves, or water movement.

彭 (péng) — phonetic component, providing the sound, and sometimes the sense of something large, booming, resounding.

Thus 澎 conveys the idea of loud, swelling, forcefully moving water.

Often appears in the compound 澎湃 (팽배) meaning:

- surging and overflowing (waves)

- overwhelming emotion or force

The phonetic element 彭 appears in other characters with meanings related to swelling, bursting, or loudness (e.g., 膨 — “to swell”).

Classical citations:

《文選》 (Wen Xuan)

「潮水澎湃，聲震海濱。」

“The tidal waves surged and roared, their sound shaking the seashore.”

《廣雅》 (Guangya)

「澎，水擊聲也。」

“澎 means the sound of water striking.”

《說文》 (Shuowen Jiezi)

「澎，水盛貌。」

“澎 describes the appearance of abundant, swelling water.”