The story
- Ancient Greek · derived fromσάν
- English todaytsan
By analogy with san (from Ancient Greek σάν (sán)), which stood for /s/, due to it likely being a variant of that letter.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An Ancient Greek letter ⟨Ͷ ͷ⟩, found in a single inscription in the Arcadian dialect of Mantineia, which likely represented /t͡s/. Full definition →
By analogy with san (from Ancient Greek σάν (sán)), which stood for /s/, due to it likely being a variant of that letter.
Etymology from Wiktionary, CC BY-SA 4.0.