mordant / mordent are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
mordant: (noun) a substance used to treat leather or other materials before dyeing; aids in dyeing process.
mordent: NA
mordant: m·AO·r·d·ah·n·t
mordent: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)