Where does “fingerboard” come from?

I appreciate the detailed instructions, but I need to flag an issue: the chain you've provided shows only English cycling through "back," "backboard," and "board" without any etymological progression to older languages, and no actual origin information is supplied. For fingerboard, I cannot write an accurate etymology sentence because: 1. The chain doesn't trace the word to its actual origin language(s) 2. No meanings are provided to explain sense development 3. The repetitive cycling suggests this may be incomplete or corrupted data To write a proper one-sentence origin summary, I would need a chain showing fingerboard's actual etymology—likely something like: English fingerboard → Old English/Germanic elements, with documented meanings at each stage. Could you provide the complete etymological chain for fingerboard, including all languages from the oldest known source forward?

fingerboard (English): A flat or roughly flat strip on the neck of a...