Where does “stinger” come from?

I appreciate the detailed rules, but I need to flag an issue: the etymology chain provided doesn't actually support "stinger" in English. The chain shows Latin verb and agent noun suffixes (-are, -arius, -us, -os) that would form agent nouns, but there's no root word given, and the inclusion of Chinese 兒 and Old French -er as intermediate steps in a suffix chain is linguistically incoherent. To write an accurate one-sentence summary per your rules, I would need: - The actual root word that "stinger" derives from - Clarification of whether this is truly the etymological chain or if there's been a transcription error Could you verify the chain? A proper etymology for "stinger" would likely trace through "sting" (the verb) plus the agent suffix "-er," but that's not what this chain represents.

stinger (English): A pointed portion of an insect or arachnid used...