The word voice (sound made by the human mouth) came from the old French voiz, from the Latin vocem from vox (voice, sound), which is related to the greek verb Î²Î¿ÏŽ (shout, cry for, say something with strong voice; voo) and its aeolic form (fut.) Î²ÏŽÎ¾Ï‰ (voxo).
Î±) Î²Î¿ÏŽ: shout [voo]
Î²) Î²Î¿Î®ÏƒÏ‰ (Î¼ÎÎ»Î»Î¿Î½Ï„Î±Ï‚): shout (future) [voico]
Î³) Î²Î¿Î®: noise, clamour [voi]