cogent
KOH-juntadjMeaning clear, logical and convincing
Memory hook COG-ent: every COG fits. In Ada’s argument every point fits the next like the cogs of a clock, so the whole thing turns smoothly: it is cogent.
Rosa made a cogent case for a longer lunch break, complete with charts.
In context The lawyer’s argument was cogent: each point followed clearly from the last, and by the end even the doubtful jurors were nodding.
Similar convincing, compelling, persuasive, sound
Opposite unconvincing, weak, muddled
From Latin cogens, “compelling,” from cogere (to drive together): co- (together) + agere (to drive).