The word 'algorithm' is a mangled version of a 9th-century mathematician's name
Muhammad ibn Musa al-Khwarizmi wrote the treatise that introduced Hindu-Arabic numerals and systematic arithmetic methods to the Latin-speaking world from Baghdad's House of Wisdom. When his name was Latinized as 'Algoritmi' in translated manuscript titles, it gradually morphed into 'algorism' and then 'algorithm', now the standard term for any step-by-step computational procedure.