Rashi on Leviticus 14:41/רש"י על ויקרא י״ד:מ״א

1יקצע — rogner in old French, SCRAPE OFF, and in Mishnaic Hebrew it occurs many times.

2‎מבית INSIDE.

3סביב ROUND ABOUT — i. e. the place round about the plague-spot; and in Torath Cohanim (Sifra, Metzora, Chapter 4 5) it is also thus explained: that he shall peel off the plaster which is round about the area where the plague-stricken stones had been.

4הקצו is connected in meaning with the word קצה, end, — it means: which they had scraped off at the edges of the plague-spot round about it. (The words mean: the dust which they have removed from the edges. It has nothing to do with “scraping off”).