- voiceless (adj.)
[voiceless 词源字典]
- 1530s, "unable to speak," from voice (n.) + -less. Meaning "having no say in affairs" is from 1630s; that of "unspoken, unuttered" is from 1816. In phonology, "unvoiced," from 1867. Related: Voicelessly; voicelessness.[voiceless etymology, voiceless origin, 英语词源]