Where does “préchainement” come from?

préchainement (Norman) comes from Norman préchain, from Old French prochain, from Vulgar Latin propeanus, from Latin prope, from Proto-Indo-European prokʷe, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Definitions

Ancestry of “préchainement”, step by step

StepLanguageWordMeaning
1Normanpréchainnext
2Old Frenchprochainnext
3Vulgar Latinpropeanus—
4Latinpropenear, nearby, nigh; close in time; almost, nearly
5Proto-Indo-Europeanprokʷe—
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European prokʷe →