retroperfusion

Etymology tree
Proto-Italic *wre-
Proto-Italic *wretrō
Latin retrōder.
English retro-
Proto-Indo-European *per-der.
Proto-Italic *peri-
Latin per-
Proto-Indo-European *ǵʰew-
Proto-Indo-European *ǵʰewd-
Proto-Indo-European *-né-?
Proto-Indo-European *ǵʰunédti ~ ǵʰundénti
Proto-Italic *hundō
Latin fundō
Latin perfundō
Proto-Indo-European *-tis
Proto-Indo-European *-Hō
Proto-Indo-European *-tiHō
Proto-Italic *-tiō
Latin -tiō
Latin perfūsiō
Middle French perfusion
English perfusion
English retroperfusion
From retro- + perfusion.