Where does “preparoiminen” come from?

preparoiminen (Finnish) comes from Finnish preparoida, from Latin praeparō, 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 “preparoiminen”, step by step

StepLanguageWordMeaning
1Finnishpreparoidato prepare e.g. specimen
2Latinpraeparōto get ready, prepare
3Latinpraebefore; in front; in front of
4Proto-Italicpraibefore; in front of
5Proto-Indo-Europeanpreh₂-before, in front
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European preh₂-