Where does “hyperdistension” come from?

hyperdistension (English) comes from English distension, from Middle French distension.

Ancestry of “hyperdistension”, step by step

hyperdistension traces back through two separate lines of ancestry.

via English distension

StepLanguageWordMeaning
1EnglishdistensionThe act of distending
2Middle Frenchdistension

via English hyper

StepLanguageWordMeaning
1Englishhyperhyperactive; energetic; overly diligent;...
Every word from Middle French distensionEvery word from English distension