Where does “pion” come from?

I cannot write this summary because the etymological chain provided is incoherent and appears corrupted. The sequence jumps illogically between languages (English → Ancient Greek → Japanese → Proto-Indo-European) without plausible phonetic or semantic connections, and the chain doesn't support a coherent derivation for "pion." To write an accurate etymology sentence, I would need: - A valid chain showing how English "pion" descends from earlier languages - Clear phonetic correspondences between steps - Semantic continuity (or explained semantic shift) Could you verify the source chain? A legitimate etymology for "pion" (the subatomic particle) would typically reference its coinage in mid-20th-century physics, not ancient language families.

pion (English): Any of three semistable mesons, having positive,...