Metathesis is a phonological process where sounds in a word switch places. For example, "ask" became "aks" in some dialects.
The word "wasp" is believed to have originated from Old English "wæps," which itself is likely related to Proto-Germanic *wapsō. There is no evidence of sound swapping within the word's history that would suggest metathesis.
However, there is some debate about the etymology of "wasp." Some linguists believe it may be related to the word "weave," suggesting an association with the insect's intricate nest building. However, this connection is not universally accepted.
In conclusion, while the exact origin of "wasp" is not definitively known, it does not appear to be a result of metathesis.