The story
- Proto-Indo-European*bʰeh₂-
- Proto-Hellenic*pʰōnā́
- Ancient Greekφωνή (phōnḗ)
- Englishphono-
- Proto-Indo-European*megʰ-der.?
- Ancient Greekμηχανή (mēkhanḗ)
- Ancient Greekμηχανικός (mēkhanikós)
- Latinmēchanicus
- Old Frenchmecanique
- Middle Englishmekanyk
- Englishmechan(ic)
- Englishmechano-
- Proto-Indo-European*ḱerd-
- Proto-Indo-European*ḱḗr
- Proto-Indo-European*ḱr̥díyeh₂
- Proto-Hellenic*kərdíyā
- Ancient Greekκαρδία (kardía)
- Englishcardio-
- Proto-Indo-European*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγρᾰ́φω (grắphō)
- Ancient Greekγραφή (graphḗ)
- Englishcardiography
- Englishmechanocardiography
- English todayphonomechanocardiography
From phono- + mechanocardiography.
Etymology from Wiktionary, CC BY-SA 4.0.