1. radiologie   radiology   telegraphy   choreography   etiology, aetiology   Hint Half-n-half Clue   2. aéronautique   aeronautics   accountancy   telepathy   entomology   Half-n-half Clue   3. astrologie   choreography   astrology   etiology, aetiology   accountancy   Half-n-half Clue   4. comptabilité   sociology   archeology, archaeology   choreography   accountancy   Half-n-half Clue   5. étiologie   topology   accountancy   etiology, aetiology   aeronautics   Half-n-half Clue   6. anthropologie   anthropology   choreography   calligraphy   radiology   Half-n-half Clue   7. sociologie   anthropology   aeronautics   theology   sociology   Half-n-half Clue