The shape of Latin S arises from Greek Σ by dropping a single out with the 4 strokes of that letter. The (angular) S-form composed of 3 strokes existed being a variant with the 4-stroke letter Σ by now while in the epigraphy of Western Greek alphabets, and also the https://bud-naked-concentrate08531.ampedpages.com/detailed-notes-on-s-58522304