The term "collier" appears in literature with a range of meanings, oscillating between an occupational descriptor and a personal or satirical epithet. In some texts, it denotes a coal-carrier or miner; for instance, in Dickens’s Great Expectations a collier is described vividly with her "galley-fire smoking" as a figure emblematic of working-class resourcefulness [1]. In the poetry of Robert Burns, "Collier laddie" enters into affectionate local dialogue that evokes the lives of miners and their communities, giving a distinctly regional flavour to his verse [2], [3], [4], [5], [6]. Meanwhile, in works like Ben Jonson’s The Alchemist and Rabelais’s Gargantua and Pantagruel the term is deployed pejoratively—to chide or insult—thus suggesting roughness or vulgarity [7], [8]. Additionally, "Collier" functions as a surname in letters and essays by Jane Austen and Mark Twain, transforming from an occupation to an identity marker [9], [10]. The varied usage, from occupational reference to metaphor and proper name, reflects the word’s adaptability in early modern and later literature, signaling both social class and character traits depending on the context [11], [12], [13].