1. sismologie   seismology   archeology, archaeology   telegraphy   theology   Hint Half-n-half Clue   2. radiologie   cosmetology   economics   radiology   sociology   Half-n-half Clue   3. aéronautique   aeronautics   telepathy   accountancy   theology   Half-n-half Clue   4. comptabilité   rheology   theology   accountancy   topology   Half-n-half Clue   5. topologie   theology   topology   ornithology   economics   Half-n-half Clue   6. anthropologie   anthropology   accountancy   ornithology   seismology   Half-n-half Clue   7. étiologie   archeology, archaeology   etiology, aetiology   sociology   economics   Half-n-half Clue