"en de tois hêmerois kai phronimôterois diêrthrôtai mallon phainontai gar mallon boêtheiai ginomenai kai eunoiai kai sunergiai allêlois"

"In tame animals, on the other hand, and those which possess a greater share of intelligence, it has assumed a more complex form; for in their case we see more examples of mutual help, goodwill, and co-operation."

[Aristotle Economics 1343b17; transl. by G.C. Armstrong]

Synergy as good will and cooperation sounds like a close fit to standard corporatespeak meaning. Aristotle goes on to write about " It is, however, in the human species that this complexity is most marked; since the co-operation [sunergia] between woman and man aims not merely at existence, but at a happy existence."

Ceci n'est pas un seing.