'coal-fueled' originates from the combination of 'coal,' a combustible black or brownish-black sedimentary rock, and 'fueled,' derived from the verb 'fuel,' meaning to supply with material for combustion.

'Coal' comes from Old English 'col,' meaning 'charcoal' or 'coal,' and 'fueled' is derived from the Old French 'fouaille,' meaning 'fuel.'

Initially, 'coal-fueled' referred to any device or system powered by coal, and this meaning has remained consistent over time.