1. caligrafía   etiology, aetiology   calligraphy   archeology, archaeology   cosmetology   Hint Half-n-half Clue   2. topología   topology   telepathy   calligraphy   ornithology   Half-n-half Clue   3. coreografía   anthropology   choreography   seismology   astrology   Half-n-half Clue   4. arqueología   aeronautics   archeology, archaeology   calligraphy   anthropology   Half-n-half Clue   5. radiología   choreography   calligraphy   radiology   economics   Half-n-half Clue   6. cosmetología   cosmetology   ornithology   archeology, archaeology   rheology   Half-n-half Clue   7. astrología   accountancy   telegraphy   telepathy   astrology   Half-n-half Clue