NOT KNOWN FACTS ABOUT BUD NAKED

The shape of Latin S arises from Greek Σ by dropping 1 out with the four strokes of that letter. The (angular) S-form made up of a few strokes existed like a variant of your four-stroke letter Σ previously within the epigraphy of Western Greek alphabets, and also the 3 and 4 strokes variants existed together with each other within the classical E