A binding that holds two things together while leaving them two. From tying, not from merging.
Latin connexio (a binding together), from connectere (to bind together), from com- (together) + nectere (to tie); a bond built from tying rather than from merging, so both sides keep their own shape.
A binding that holds two things together while leaving them two. It is built by tying, never by dissolving one into the other.