Where does “por qué” come from?

por qué (Spanish) comes from Spanish por, from Old Spanish por, from Vulgar Latin por, from Latin prō, from Latin ratus, from Latin rēōr, from Proto-Italic rēōr, from Proto-Indo-European h₂reh₁- — to fit, to fix, to put together.

por qué (Spanish): why, for what reason

Definitions

  1. why, for what reason

Ancestry of “por qué”, step by step

por qué traces back through two separate lines of ancestry.

via Spanish por

StepLanguageWordMeaning
1Spanishporby; for; through, out, via
2Old Spanishpor
3Vulgar Latinporfor
4Latinprōfor
5Latinratusconsidered, having been considered; established,...
6Latinrēōrto reckon, calculate
7Proto-Italicrēōrto reckon, to calculate; to think, to deem, to...
8Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
9Proto-Indo-Europeanh₂er-to fit, to fix, to put together

via Spanish qué

StepLanguageWordMeaning
1Spanishquéwhat; which; what a; such; how
2Latinquidneuter nominative/accusative singular of quis;...
3Proto-Italickʷid
4Proto-Indo-Europeankʷídneuter nominative/accusative singular of *kʷís
5Proto-Indo-Europeankʷíswho, what; who, which, that; which, what
6Proto-Indo-Europeankʷi-interrogative base

Words derived from “por qué

Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂reh₁-Every word from Proto-Italic rēōr