phonocardiography

Etymology tree
Proto-Indo-European *bʰeh₂-der.
Proto-Hellenic *pʰōnā́
Ancient Greek φωνή (phōnḗ)der.
English phono-
Proto-Indo-European *ḱerd-
Proto-Indo-European *ḱḗr
Proto-Indo-European *ḱr̥díyeh₂
Proto-Hellenic *kərdíyā
Ancient Greek καρδία (kardía)lbor.
English cardio-
Proto-Indo-European *gerbʰ-
Proto-Hellenic *grə́pʰō
Ancient Greek γρᾰ́φω (grắphō)
Ancient Greek -ᾱ (-ā)
Ancient Greek -η (-ē)
Ancient Greek γραφή (graphḗ)
Ancient Greek -γραφίᾱ (-graphíā)bor.
French -graphieder.
English -graphy
English cardiography
English phonocardiography
From phono- + cardiography.