[fittingopposite]

Haha. Yeah I figured Xylo- (wood) + sth. related to mono-poly so wood-seller made sense. Never have heard of this word before

[pclmulqdq]

I think the test was vibe coded, because a xylologist is someone who studies wood, not someone who sells wood. I am not sure if "xylolgist" was the exact word, though.

xylo- = wood; -logy = study

Indeed from M-W: "a branch of dendrology dealing with the gross and the minute structure of wood"

[fittingopposite]

Seems to be a hapax legomenon https://www.oed.com/dictionary/xylopolist_n "OED's only evidence for xylopolist is from 1656, in the writing of Thomas Blount, antiquary and lexicographer."

[pclmulqdq]

That test had several hapax legomena on it, so it would make sense.