taru-adjective, adverb taking the 'to' particle
ringing of bells or chimes
Archaic literary onomatopoeia describing the clear, resonant sound of bells or chimes. Used in classical Japanese with 〜たる or 〜と, and rarely in modern writing outside of poetic or historical contexts.
古寺の鐘が鏗鏗と鳴り響くさまを詠んだ詩がある。
There is a poem that describes the temple bell ringing out with a clear, resonant sound.
A reduplicated onomatopoeic form from classical Chinese, where 鏗 represented a clear ringing sound. The exact historical derivation in Japanese is uncertain, but it was adopted as a literary sound word.