1. calligrafia   calligraphy   telegraphy   etiology, aetiology   accountancy   Hint Half-n-half Clue   2. coreografia   telegraphy   archeology, archaeology   choreography   economics   Half-n-half Clue   3. teologia   theology   economics   entomology   etiology, aetiology   Half-n-half Clue   4. cosmetologia   topology   cosmetology   anthropology   aeronautics   Half-n-half Clue   5. aeronautica   archeology, archaeology   rheology   seismology   aeronautics   Half-n-half Clue   6. topologia   choreography   topology   aeronautics   rheology   Half-n-half Clue   7. telegrafia   sociology   cosmetology   telegraphy   radiology   Half-n-half Clue