pronic

The story

1. Ancient Greek · derived fromπρομήκης“elongated, oblong”
2. Latin · derived frompromicus
3. New Latin · borrowed frompronicus
4. English todaypronic

Apparently from New Latin pronicus, a misspelling of Latin promicus, from Ancient Greek προμήκης (promḗkēs, “elongated, oblong”), but the spelling has been pronic from its earliest known occurrence in English (Leonhard Euler, Opera Omnia, series 1, volume 15).