mid 16th cent. (in the sense 'overcome, defeat in argument'): from Latin convincere, from con- 'with' + vincere 'conquer'. Compare with convict
Although I soon convinced him of my innocence, I think he still has serious doubts about my sanity...
The waste disposal industry is finding it difficult to convince the public that its operations are safe.
That weekend in Plattsburgh, he convinced her to go ahead and marry Bud.