Proto-Sinaitic script - Wikipedia
Micah Schippa

Proto-Sinaitic, also referred to as Sinaitic, Proto-Canaanite , Old Canaanite, or Canaanite, is a term for both a Middle Bronze Age ( Middle Kingdom) script attested in a small corpus of inscriptions found at Serabit el-Khadim in the Sinai Peninsula, Egypt, and the reconstructed common ancestor of the Paleo-Hebrew, Phoenician and South Arabian scripts (and, by extension, of most historical and modern alphabets).