co·here 
(kō-hîr)
(kō-hîr)v. co·hered, co·her·ing, co·heres
v.intr.
1. To stick or hold together in a mass that resists separation.
2. To have internal elements or parts logically connected so that aesthetic consistency results: "The movie as a whole failed to cohere" (Robert Brustein).
v.tr.
To cause to form a united, orderly, and aesthetically consistent whole.
[Latin cohaerēre : co-, co- + haerēre, to cling.]