The term 'centric prefix' refers to a type of word that is used to indicate the origin or location of something. The crossword solutions for this term are ETHNO (5 letters), EGO (3 letters), ENDO (4 letters), GEO (3 letters), HELIO (5 letters), EXO (3 letters), AFRO (4 letters), and EURO (4 letters). ETHNO indicates an ethnic origin, EGO indicates self-centeredness, ENDO indicates something within, GEO indicates geography, HELIO indicates the sun, EXO indicates something outside, AFRO indicates African origin, and EURO indicates European origin.