corroborate
Pronunciation: /kəˈrɒbəreɪt/
verb


Origin:
mid 16th century (in the sense 'make physically stronger'): from Latin corroborat- 'strengthened', from the verb corroborare, from cor- 'together' + roborare, from robur 'strength'

Spelling help
Spell corroborate with a double r and then -obor-.