Is there any list of Pictish words that made it into the language? Or Celtic?
Whiskey is definitely Celtic ;)
“Galore”, as in “prizes galore” (or maybe even “loanwords galore”) which means “to repletion” comes from Scots Gaelic, and (it sez here) is the only adjective in English that properly precedes the noun. :’)
"Banshee" is one of very few, perhaps even the only one, that is known to have persisted from ancient times. "Avon", the name of the river in Stratford, made it as a proper noun only, from "afon" the common Celtic/Welsh noun for any river.
Most or all of the others are later loan words, either directly from medieval or modern Welsh, Cornish, Scots Gaelic or Irish Gaelic, or indirectly from proto-Celtic/Gaullic via Norman French or vulgar Latin.
-ccm
Pixie. From "Pict-Sidhe" (Sidhe is pronounced "shee")
“Or Celtic?”
Donal (=Donald)