From Latin 'vocalis' (of the voice), from 'vox' (voice) — ancestor of 'vowel,' sibling to 'invoke.'
Relating to the human voice; expressed in words or by the voice; outspoken, expressing opinions freely and loudly.
From Latin 'vōcālis' (speaking, sounding, of or pertaining to the voice), from 'vōx' (voice, sound, genitive 'vōcis'), from PIE *wekʷ- (to speak, to utter, to raise the voice). This root is one of the most productive in classical languages: Latin 'vōx' gave 'voice,' 'vowel' (from 'littera vōcālis,' a voiced letter), 'vocation' (a calling — the voice calling you to a purpose), 'invoke,' 'advocate' (one who speaks for you), 'provoke,' 'revoke,' and 'vocabulary.' Greek 'ēpos' (word, speech) and
The word 'vowel' is a direct descendant of 'vocal.' Latin 'vōcālis littera' meant 'voiced letter' — a letter you pronounce with your voice open, without obstruction, as opposed to consonants (from 'con-' + 'sonāre,' letters that sound together with a vowel). Every time you say 'vowel,' you are saying