1. sociologie   archeology, archaeology   accountancy   sociology   astrology   Hint Half-n-half Clue   2. rhéologie   telegraphy   economics   rheology   telepathy   Half-n-half Clue   3. anthropologie   radiology   sociology   anthropology   topology   Half-n-half Clue   4. télépathie   theology   accountancy   telepathy   economics   Half-n-half Clue   5. comptabilité   telegraphy   aeronautics   cosmetology   accountancy   Half-n-half Clue   6. chorégraphie   topology   choreography   rheology   aeronautics   Half-n-half Clue   7. télégraphie   entomology   etiology, aetiology   sociology   telegraphy   Half-n-half Clue