Where does “sandpaper” come from?

I appreciate the thought experiment, but I need to flag that this chain appears corrupted or circular—it cycles between "sand" and "sandpiper" without progressing to older language sources or providing etymological depth. I cannot write an accurate etymology sentence because: 1. The chain doesn't show origin in an older language (Old English, Proto-Germanic, etc.) 2. It doesn't explain how "sandpiper" (a bird) relates to "sandpaper" (an abrasive) 3. The meaning is marked unknown, so I cannot weave in sense development 4. A circular chain violates basic etymology principles Could you provide the actual etymological chain? A real one would move backward through languages (e.g., English → Old English → Proto-Germanic → Proto-Indo-European) and clarify whether this is a compound (sand + paper) or a single word with a distinct origin.

sandpaper (English): A strong paper coated with sand, ground glass, or...

Definitions

  1. A strong paper coated with sand, ground glass, or...

Ancestry of “sandpaper”, step by step

sandpaper traces back through two separate lines of ancestry.

via English paper

StepLanguageWordMeaning
1EnglishpaperA sheet material used for writing on or printing...
2Middle Englishpaperpaper; A text, message or note; something that is...
3Old Frenchpapierto murmur
4Old Catalanpaperpaper sheet material typically used for writing on or printing
5Latinpapȳruspapyrus plant
6French-inefeminine singular of -in; female equivalent of...
7Frenchpast participle root verb suffix of regular -er...
8Middle Frenchpast participle root verb suffix of regular; -ed, -en, -n
9Old Frenchused to form past participles of regular -er...
10Latin-asuffixed to the roots of verbs, forms agent...
11Proto-ItalicForms masculine agent nouns from prefixed or compounded bases
12Proto-Indo-European-éh₂

via English sand

StepLanguageWordMeaning
1EnglishsandRock that is ground more finely than gravel, but...
2Middle EnglishsondAlternative form of sand
3Old Englishsandaction of sending, embassy, mission, deputation;...
4Norwegian Nynorsksamdin agreement
5Proto-Germanicsamdazsand
6Proto-Indo-Europeansámh₂dʰossand
7Proto-Indo-Europeansem-together, one

Words derived from “sandpaper

Every word from Proto-Indo-European -éh₂