Where does “pilastro” come from?

pilastro (Italian) comes from Italian pila, from Latin pila, from Latin pīlus, from Latin pīlum, from Proto-Italic pistlom, from Proto-Indo-European pis-tlo-, from Proto-Indo-European peys- — to grind, to crush.

pilastro (Italian): pillar, column; pilaster; obelisk

Definitions

  1. pillar, column; pilaster; obelisk

Ancestry of “pilastro”, step by step

pilastro traces back through two separate lines of ancestry.

via Italian pila

StepLanguageWordMeaning
1Italianpilapile; battery; torch / flashlight
2Latinpilamortar; pillar; pier
3Latinpīlusa hair
4Latinpīluma pounder, pestle
5Proto-Italicpistlom
6Proto-Indo-Europeanpis-tlo-
7Proto-Indo-Europeanpeys-to grind, to crush

via Latin pilastrum

StepLanguageWordMeaning
1Latinpilastrumpilaster (rectangular pillar built into a wall)
2Latinastruma star
3Ancient GreekἄστρονA celestial body
4Ancient Greekἀστήρa celestial body; illustrious person; starfish
5Proto-Hellenicastḗrstar
6Proto-Indo-Europeanh₂stḗrstar
7Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth

Words derived from “pilastro

Every word from Proto-Indo-European peys-Every word from Proto-Indo-European pis-tlo-Every word from Proto-Italic pistlom