1. topologia   rheology   cosmetology   ornithology   topology   Hint Half-n-half Clue   2. eziologia   astrology   aeronautics   etiology, aetiology   calligraphy   Half-n-half Clue   3. cosmetologia   theology   archeology, archaeology   cosmetology   ornithology   Half-n-half Clue   4. astrologia   theology   radiology   astrology   cosmetology   Half-n-half Clue   5. telegrafia   topology   cosmetology   telegraphy   archeology, archaeology   Half-n-half Clue   6. ragioneria   telegraphy   rheology   accountancy   aeronautics   Half-n-half Clue   7. telepatia   calligraphy   seismology   choreography   telepathy   Half-n-half Clue