One picture carries this whole word: something is thrown out, hits a hard surface, and is beaten back — and then beaten back again from the next surface. A shout in an empty pool does this, and so does a decision made in one office. The thing happens once; what you go on receiving are its returns, arriving from every direction and taking time to die away.
From the word’s history
The packet's source entry derives the word from Latin reverberare: re- meaning again, plus verberare, to beat or lash, from verber, a rod or whip. The literal idea is being beaten back again and again — which is exactly the picture the modern uses still trade on.
來源資料把這個字追到拉丁文 reverberāre：re-（再一次）加上 verberāre（鞭打、擊打），而 verber 是鞭子、棍子。字面上就是「一再被打回來」。可以想成：今天無論講聲音還是講影響，用的都還是這個「被打回來、還在回彈」的畫面。
packet wiktionary etymology_text for reverberate, etymology 1 (source_ref kaikki:3f6f69a190036ae4:1238087168)
登入就可以看每一支怎麼連回核心畫面。