shrill (adj.)youdaoicibaDictYouDict[shrill 词源字典]
late 14c., schrylle "high-pitched, piercing" (of the voice), probably related to Old English scralletan "to sound loudly" and of imitative origin (compare Low German schrell, German schrill "piercing, shrill"). Related: Shrillness; shrilly (adv.).[shrill etymology, shrill origin, 英语词源]
shrill (v.)youdaoicibaDictYouDict
"to sound shrilly," c. 1300, imitative (see shrill (adj.). Related: Shrilled; shrilling.