1. télépathie   entomology   cosmetology   ornithology   telepathy   Hint Half-n-half Clue   2. aéronautique   calligraphy   archeology, archaeology   etiology, aetiology   aeronautics   Half-n-half Clue   3. étiologie   seismology   entomology   cosmetology   etiology, aetiology   Half-n-half Clue   4. rhéologie   archeology, archaeology   telepathy   entomology   rheology   Half-n-half Clue   5. sismologie   seismology   calligraphy   sociology   cosmetology   Half-n-half Clue   6. cosmétologie   cosmetology   theology   calligraphy   economics   Half-n-half Clue   7. théologie   aeronautics   seismology   theology   telepathy   Half-n-half Clue