The form of Latin S arises from Greek Σ by dropping just one out of your 4 strokes of that letter. The (angular) S-condition made up of a few strokes existed to be a variant of the four-stroke letter Σ now in the epigraphy of Western Greek alphabets, as well https://sergioxpetj.blogcudinti.com/31363488/the-bud-naked-kits-diaries