Where does “sweatshop” come from?

I appreciate the detailed instructions, but I need to flag a problem: the etymology chain provided doesn't actually support the word "sweatshop." The chain traces: English shop ← Middle English sweten ← Old English swēte ← Proto-Germanic swait- ← PIE skub-/swoyd-/sweyd- This chain etymologizes "shop" (or possibly "sweat"), but "sweatshop" is a compound noun formed from "sweat" + "shop" in English, typically dated to the late 19th century. The chain doesn't explain how these elements combined or provide the full etymology of "sweatshop" as a lexical unit. **I cannot write an accurate one-sentence etymology for "sweatshop" based on this chain** because doing so would violate the rule "State only what the chain supports. Do not invent dates, cognates, or

sweatshop (English): A factory or other place of work where pay is low...