Skin wool, fellmonger wool

English

Skin wool, fellmonger wool

Wool obtained from the skin of slaughtered or deceased animals, usually by fermentation or chemical treatment. A fellmonger was a dealer in hides or skins, particularly sheepskins, who might also prepare skins for tanning. The name is derived from the Old English ‘fell’ meaning skins and ‘monger’ meaning dealer.
Dutch

Blootwol

Wol van de huid van geslachte of gestorven dieren, in de regel door fermentatie of chemische behandeling verkregen.
French

Laine d'échauffe, laine de peau

Laine obtenue d'un animal mort par un procédé chimique ou biologique d’échauffé de peaux lainées, c’est-à-dire par fermentation.