Latin 'vox' (voice), from PIE *wekw- — parent of 'voice,' 'vocal,' 'vocabulary,' 'invoke,' and 'vowel.'
A Latin word meaning 'voice, sound, tone, speech, word,' and the source of English words relating to voice, calling, speech, and naming.
From Proto-Italic *wōks, from the Proto-Indo-European root *wekʷ- meaning 'to speak, to say.' Latin vōx (stem vōc-) was a third-declension feminine noun covering the full range of vocal production: the voice as a physical instrument, a sound or tone, a word or utterance, and speech or language in general. The PIE root *wekʷ- also produced Greek ἔπος (épos, 'word, epic') and Sanskrit
The English word 'vowel' comes from Latin vocālis (littera), meaning '(letter) of the voice' — a vowel is the voiced core of a syllable, the sound you can sustain and project. The Greek cognate ἔπος (épos, 'word') gave English 'epic' (originally an 'epos' was a spoken word, then a narrative poem recited aloud). Sanskrit वाच् (vāc, 'speech') was personified as a goddess — Vāc, the divine voice — in the Rigveda, making