zsong

Etymology
From an onomatopoeia (imitating the buzzing sounds of certain insects) +.

Verb

 * 1)  to hum, buzz to drone like certain insects naturally do in motion, or sounding similarly
 * 2)  to hum, ring, echo, resound
 * 3)  to buzz of a thought, emotion, memory: to continuously come up in one's mind
 * 1)  to buzz of a thought, emotion, memory: to continuously come up in one's mind
 * 1)  to buzz of a thought, emotion, memory: to continuously come up in one's mind

Conjugation
or