Where does “preen” come from?

I need to identify what's happening in this etymology chain and write an accurate one-sentence summary. Looking at the chain provided: - English prune | Old French proignier | Old French prune | Latin rotundus | Latin rota | Proto-Indo-European pro- | Latin rota | Latin rota However, the headword given is "preen" not "prune." There's a mismatch here. The chain shows "prune" etymology, but I'm asked to write about "preen." Also, the chain has some issues - it includes repetitions (Latin rota appears twice at the end) and the connections don't seem to form a coherent path. The chain appears corrupted or incomplete. Given the instruction to "State only what the chain supports. Do not invent dates, cognates, or intermediate steps," I cannot reliably write a sentence when: 1. The headword (p

preen (English): A forked tool used by clothiers for dressing...

Definitions

  1. A forked tool used by clothiers for dressing...

Ancestry of “preen”, step by step

preen traces back through two separate lines of ancestry.

via Old French proignier

StepLanguageWordMeaning
1Old Frenchproignierto trim the feathers with the beak
2Old Frenchprooignier
3Latinrotundusround, circular; spherical, rotund; rounded,...
4Latinrotōto turn, trend, wheel, roll, swing about, whirl, rotate; brandish
5LatinRotaan ecclesiastical appellate court in the Catholic...
6Proto-Italicrotā
7Proto-Indo-EuropeanHróth₂-eh₂
8Proto-Indo-EuropeanHreth₂-to run

via Middle English prene

StepLanguageWordMeaning
1Middle Englishprene

Words derived from “preen

Every word from Proto-Indo-European Hreth₂-