Not out of the bosque yet

I've finally gotten around to tracking down the connection between the Spanish word "bosque," as in the woods in the Rio Grande valley, and the English word "bosky," which I came across in Milton or Spenser or somebody and which also means wooded or bushy. I did what I could, but I had to rely much more on wikis than I would have liked. So I may have to correct some of this later.

My first guess was that the English was borrowed from the Spanish, or maybe both of them were descended from Latin. But it looks like that's not so! I think I've found one of those rare instances where the Latin and the Spanish both borrowed from Old Germanic.  According to this source there's not much agreement where the old Germanic term came from, and one expert thinks it originally came from the Latin "buxus," box tree; but nobody else thinks so.

"Bosque" apparently comes by way of Catalan/Provencal/Old French, "bosc," from the proposed Germanic "busk," meaning brush or thicket.  The Latin "boscus, bosci" is a medieval (not classical) word meaning wood or wooded area. Fun fact: descendant words are "ambuscade," meaning an ambush set up in the woods, and "oboe," which is -- a woodwind!

I would like to see what the OED has to say about the English "bosky." Merriam-Webster just ties it to Middle English "bush" or "bosk," and I want more details. The whole business about the SH and SK at any rate makes sense - English apparently did that a lot. You see the same thing in "shirt" and "skirt," which are exactly cognates only one of them had more Norse influence. I think. If I'm remembering.