Where does “bass” come from?

I cannot write this sentence because the chain you've provided contains logical problems that prevent me from following the rules. Specifically: 1. The chain loops back to English multiple times ("English base" repeated five times), which breaks the etymological sequence from newest to oldest language. 2. The connection between Latin *bassus* and Ancient Greek *βάσις* is asserted without explanation of how they relate. 3. Without a known meaning for the headword or clarity on which sense of "bass" (the fish, the voice, the fiber) is being traced, I cannot "weave in the oldest meaning to explain the sense development" as required. Could you provide a corrected chain showing the actual language-to-language progression, and clarify which sense of "bass" this etymology should cover?

bass (English): Of sound, a voice or an instrument, low in pitch...