Where does “frog” come from?

I need to work through this chain carefully, but I notice a significant problem: the chain provided (ribbit → floccus → -gô → prew-) does not etymologically connect to "frog." The word "frog" has a different, well-documented etymology that doesn't match this chain at all. "Frog" comes from Old English "frogga," related to Proto-Germanic "*fruggilaz," ultimately from Proto-Indo-European roots meaning "to jump" or related to swelling/croaking. However, following your instructions to "state only what the chain supports" and "do not invent," I cannot write an accurate etymology sentence using this chain for the headword "frog," because the chain provided does not support that headword. **I cannot complete this task as requested** because the etymological chain given does not trace back to the English word "frog." If you'd

frog (English): A small tailless amphibian of the order Anura...