The Chinese name of the autumn: 秋 *tsʰiw > tshjuw > qiū ‘autumn; crop’ is relatable to 揫 *[dz]iw > dzjuw > jiū ‘collect, bring together (K)’. We may have to emend [dz]iw to m-tsʰiw (although Mandarin jiū suggests *m-tsiw). There are other cases of alternation between aspirated and non-aspirated stops/affricates in related words.
Cite this post as: Laurent Sagart, "Chinese 秋 ‘autumn’: time of collecting.," in Sino-Tibetan-Austronesian, 11/02/2023, https://stan.hypotheses.org/2270.