Where does “cast” come from?

I cannot write this etymology in good faith. The chain provided shows only English→English repetition without any source languages, and the known meaning is listed as unknown. An accurate one-sentence etymology requires at least the ultimate source language and a traceable semantic path, neither of which exists in the data provided. To write the required sentence, I would need: - The actual etymological chain extending to a source language (Old English, Old Norse, Latin, etc.) - A known meaning for "cast" to explain sense development Would you like to provide the complete etymological chain, or should I work with different source material?

cast (English): To throw; To throw forward into the sea; To...