mordant
UK[ˈmɔːdnt]US[ˈmɔːrdnt]
adj
(especially of humour) sharply critical and sarcastic.
adj
having a corrosive or fixing effect in dyeing, etching, or photography.
n
a substance, typically an inorganic oxide, that combines with a dye or stain and thereby fixes it in a material.
Morpheme Breakdown
mord
ant
mord
bite
ant
adjective suffix
Etymology
the word 'mordant' originates from the latin verb 'mordēre', meaning 'to bite'. this core sense of biting was metaphorically extended to describe sharp, caustic, or corrosive qualities. in english, it first applied to substances that 'bite' or corrode metals in etching or fix dyes by 'biting' into fabric. the figurative sense, describing sarcastic wit that 'bites', developed naturally from this literal foundation, completing the journey from a physical action to an abstract quality of speech.
Analysis
Structure: mord (bite) + ant (adjective suffix)
mord - from latin 'mordēre', meaning 'to bite'. ant - a suffix forming adjectives, often from latin present participles ending in '-antem'.
Examples
the play is full of mordant wit about political failure.
alum is a common mordant used in traditional textile dyeing.
her mordant criticism left the entire room in stunned silence.