▪ increase the nutritive value of (food) by adding vitamins or nutrients: "cereal enriched with extra oat bran"
▪ increase the proportion of a particular isotope in (an element), especially that of the isotope U-235 in uranium so as to make it suitable for use in a nuclear reactor or weapon: "they announced they would resume building the centrifuges that can enrich uranium to weapons-grade strength"
▪ embellish a molding by carving or otherwise forming a sculpted, ornamental pattern, such as egg and dart: "one may enrich the echinus of a Doric capital with the egg and dart motif"
2. make (someone) wealthy or wealthier:"top party members had enriched themselves"
Word Originlate Middle English (in the sense ‘make wealthy’): from Old French enrichir, from en- ‘in’ + riche ‘rich’.