From Longman Dictionary of Contemporary Englishquaverqua‧ver1 /ˈkweɪvə $ -ər/ verb [intransitive, transitive] 🔊 🔊 SHAKEif your voice quavers, it shakes as you speak, especially because you are nervous or upset 🔊 ‘It’s not true, ’ she said, in a quavering voice. 🔊 ‘No, ’ he quavered. —quavery adjective→ See Verb table
Examples from the Corpus
quaver• Her voice quavered as she recounted details of the attack.