His lawyer's arguments were not cogent enough to convince the judge.
com (together)#agere (to drive) (Latin)
apposite, cogent, germane, pertinent
Cogent - Gent - Gentleman - Gentleman always uses fine-toned words to convince others. Gentleman's convincing manners convinces anybody. co+agent. cooperative agents make congent suggestions. CO & GENT, two men (gents) joining together (co) in a team to persuade you, will be more 'powerfully persuasive' than just one gent. cogent - gent - a gentle person is always the right person to convince others.