Learn how to say Mordancy correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word mordant:
(especially of humour) having or showing a sharp or critical quality; biting:
a mordant sense of humour
1a substance, typically an inorganic oxide, that combines with a dye or stain and thereby fixes it in a material.
an adhesive compound for fixing gold leaf.
2a corrosive liquid used to etch the lines on a printing plate.
impregnate or treat (a fabric) with a mordant:
mordanting a fibre is simple
(as adjective mordanted)
late 15th century: from French, present participle of mordre ‘to bite’, from Latin mordere