1. etiología   astrology   anthropology   entomology   etiology, aetiology   Hint Half-n-half Clue   2. entomología   rheology   telegraphy   economics   entomology   Half-n-half Clue   3. telegrafía   telegraphy   sociology   choreography   aeronautics   Half-n-half Clue   4. telepatía   telepathy   etiology, aetiology   cosmetology   ornithology   Half-n-half Clue   5. caligrafía   rheology   calligraphy   archeology, archaeology   entomology   Half-n-half Clue   6. económico   economics   sociology   theology   telegraphy   Half-n-half Clue   7. teología   archeology, archaeology   sociology   theology   topology   Half-n-half Clue