Where does “prépandémique” come from?

prépandémique (French) comes from French pré-, from Latin prae-, from Proto-Italic prai-, from Proto-Indo-European preh₂-, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “prépandémique”, step by step

StepLanguageWordMeaning
1Frenchpré-pre-
2Latinprae-before; in front; in charge
3Proto-Italicprai-pre-, before
4Proto-Indo-Europeanpreh₂-before, in front
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European preh₂- →