Where does “*fastigiāle” come from?

*fastigiāle (Vulgar Latin) comes from Latin fastigium, from Proto-Italic farstjagjom, from Proto-Indo-European bʰérstis, from Proto-Indo-European bʰers- — top, tip, point.

Ancestry of “*fastigiāle”, step by step

StepLanguageWordMeaning
1Latinfastigiumpeak, summit, top; slope, declivity, descent;...
2Proto-Italicfarstjagjom
3Proto-Indo-Europeanbʰérstis
4Proto-Indo-Europeanbʰers-top, tip, point

Words derived from “*fastigiāle

Every word from Proto-Indo-European bʰers-Every word from Proto-Indo-European bʰérstisEvery word from Proto-Italic farstjagjom