1. chorégraphie   choreography   etiology, aetiology   topology   telegraphy   Hint Half-n-half Clue   2. anthropologie   anthropology   rheology   astrology   ornithology   Half-n-half Clue   3. cosmétologie   aeronautics   radiology   cosmetology   topology   Half-n-half Clue   4. sismologie   seismology   economics   sociology   choreography   Half-n-half Clue   5. calligraphie   calligraphy   astrology   anthropology   seismology   Half-n-half Clue   6. sociologie   entomology   cosmetology   economics   sociology   Half-n-half Clue   7. télégraphie   cosmetology   telegraphy   seismology   telepathy   Half-n-half Clue