Cogent

a.	1.	Compelling, in a physical sense; powerful. The cogent force of nature. - Prior.
	2.	Having the power to compel conviction or move the will; constraining; conclusive; forcible; powerful; not easily reasisted. No better nor more cogent reason. - Dr. H. More. Proofs of the most cogent description. - Tyndall. The tongue whose strains were cogent as commands, Revered at home, and felt in foreign lands. - Cowper.

Adj.	1.	cogent - having the power to influence or convince; "a cogent analysis of the problem"; "potent arguments" Synonyms: potent, powerful
	2.	cogent - powerfully persuasive; "a cogent argument"; "a telling presentation"; "a weighty argument" Synonyms: telling, weighty

COGENT - COmpiler and GENeralized Translator. A compiler writing language with pattern-directed string and list processing features, for CDC 3600 and CDC 3800. A program consists of productions defining a context-free language, plus analysis and synthesis function generators. ["COGENT Programming Manual", J.C. Reynolds, ANL-7022, Argonne, Mar 1965]. [Sammet 1969, p.638]. ["An Introduction to the COGENT System", J.C. Reynolds, Proc ACM 20th Natl Conf, 1965].

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