Yes, you'll find texts that explain that 'embu' means 'turned dark' or "turned matt', but 'emboire' is a technical term in painting that the Frenchman in the street probably won't understand. Presumably painters will. And presumably English-speaking painters will understand the technical equivalents, probably 'sinking in', which pretty much says what has happened, rather more than, if you really wanted to blind 'em with science, 'prosciugated'.


"The absorbency of the ground seems to have been both feared (because of the problem of SINKING IN) and desired (because it kept the colors fresh) . [ ... ] The SINKING IN of colors, Symonds's "PROSCIUGARE," seems to be linked in their minds to the poor drying of the ground, either because the commercial primer left out the lead white for economy's sake (18), which seems to reduce the porosity of the paint film, or because it had not dried sufficiently before the painting was executed. [ ... ] The difficulties of this "new" oil medium continued to trouble La Hire, however, especially the problem of the sinking of the paint layer, particularly in dark colors. He disapproved of those painters who did not apply sufficient layers of paint, finishing with what he considered only an ebauche (sketch), using little pigment and lots of oil, as if painting a glaze. If there was not sufficient paint in the upper layers, he warned, the top paint layer would sink into the layer underneath, a process he called emboire. Emboire was caused by painting on a ground that had not dried sufficiently, or painting on a stillwet paint layer, or using excessive oil, especially oil of turpentine."
https://www.getty.edu/publications/resources/virtuallibrary/...

"On the question of whether or not the colours of a painting would turn matt or 'PROSCIUGATED', Canini replied that they would not, 'because the first sbozzo was so p.fectly dry. "
https://www.academia.edu/37305837/Artists_Inventories_and_th...


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Note added at 1 hr (2022-03-21 11:09:53 GMT)
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Here 'sunk in' - or at least a remedial technique - is explained to learners, so it must be known to those of an artistic bent.
"Oiling out (A technique used in oil painting when the oil SINKS INTO the lower layers of a painting, leaving the top layers lacking vitality.
Often SINKING occurs in patches, rather than over the whole painting due to varied drying times of the paints used (some colours dry faster than others).
Oiling out is not a technique which beginners should be worried about. It is more of an advanced technique and is not a necessary part of learning how to paint. It is however, a useful technique once one becomes more advanced with oils.
In practice, oiling out would involve dabbing a very thin amount of artist quality oil medium over the areas of the painting which have SUNK IN using a fine cloth. This should only be done once the painting is dry to touch, as you do not want any mixing of the colours. If you are a beginner and the drying/ uneven tones are messing with your ability to properly assess values and tones, then watch this first to get a better understanding. If you don't have or don't want to use linseed oil, you can also use galkyd and a brush, and only put a small amount on your brush.)"
https://www.kitkingart.com/techniques

"A satin picture varnish was chosen for this project. You can see that there are some places where the paint is slightly SUNK IN, mostly in dark areas. There appears to be an uneven surface."
https://artradarjournal.com/2021/11/17/what-did-picasso-hide...