Late Middle Chinese origin
Source-reportedMeaning: “week”
/t͡ɕɨu/ → /ɕjɨu/ → /ɕuː/ From Middle Chinese 周 (MC tsyuw).
Sources for this account (2)
- Wiktionary: 週CC-BY-SA-4.0 · retrieved 2026-10-15
- KANJIDIC2: 週CC-BY-SA-4.0 · rev. 2026-288 · retrieved 2026-10-15

