pneumocardiographic

Etymology tree
Proto-Indo-European *plew-
Proto-Indo-European *-mṓ
Proto-Indo-European *pléwmō
Ancient Greek πλεύμων (pleúmōn)
▲
Ancient Greek πνέω (pnéō)influ.
▲
Ancient Greek πνεῦμα (pneûma)influ.
Ancient Greek πνεύμων (pneúmōn)bor.
English pneumo-
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 γράφω (gráphō)
Ancient Greek -γρᾰ́φος (-grắphos)der.
English -graph
English cardiograph
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English cardiographic
English pneumocardiographic
From pneumo- + cardiographic.