σύνεσις
Alt. σύνεσις,
Infl. attic ξύνεσις, εως
Etym. σύνειμι (εἶμι "ibo)", σύνιημι
I. （εἶμιibo) "a coming together, union", ξύνεσις δύω ποταμῶν Od.
II. （συνίημι) "quick comprehension, mother-wit, intelligence, sagacity", Thuc.; of animals, Plat.
2. c. gen. rei, "intelligence in" a thing, "sagacity in respect to" it, id=Plat.; περί τινος Thuc.
III. "conscience, =" συνείδησις, Eur.
IV. "a branch of art or science", Arist.