phono-

Etymology tree Proto-Indo-European *bʰeh₂-der. Ancient Greek φωνή (phōnḗ)der. English phono- From Ancient Greek φωνή (phōnḗ, “voice, sound”). The word φωνή primarily referred to articulated human or animal sounds. This is in contrast to ἠχή -- from which echo is derived -- which referred to sounds in general.

来源：wiktionary