cogent

Definitions

co- (together) + agere (drive) → cogere ('drive together, compel') + -ent = something that drives you together toward one conclusion. A cogent argument compels agreement — it 'forces' your reasoning into line. The ag root is compressed to -g-.

Why It Means This

cogent comes from cogere, 'to drive together' (co- + agere) — the same verb behind 'compel.' A cogent argument 'drives' all the points together so tightly that you're compelled to agree. The force isn't physical but logical.

Example Sentences

• 1.

  She made a cogent argument for reform.

• 2.

  The evidence was clear and cogent.