/ ˈkəʊdʒənt; NAmE ˈkoʊ-/ adjective
( formal ) strongly and clearly expressed in a way that influences what people believe
SYN convincing :
She put forward some cogent reasons for abandoning the plan.
► co·gency / ˈkəʊdʒənsi; NAmE ˈkoʊ-/ noun [ U ]
► co·gent·ly adverb
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WORD ORIGIN
mid 17th cent.: from Latin cogent- compelling, from the verb cogere , from co- together + agere drive.