From PIE *gʰedʰ- (to unite, to fit) — the oldest sense of goodness was not moral virtue but simple suitability, a proper fit.
Of a high quality, standard, or level; morally right, virtuous, or satisfactory.
From Old English 'gōd,' from Proto-Germanic *gōdaz, derived from the PIE root *gʰedʰ- meaning 'to unite, to join, to fit.' The original sense was 'fitting' or 'suitable' — something that fits together well. This connects to the idea that what is 'good' is what is appropriate or belonging. Despite the phonetic similarity, 'good' is etymologically unrelated to 'God,' which derives from a different PIE root (*gʰew- 'to call, to invoke'). Key roots: *gʰedʰ- (Proto-Indo-European: "to unite, to join, to fit together").