  For a smooth scheme over a perfect field of characteristic p>0, we generalise
a definition of Bloch and introduce overconvergent de Rham-Witt connections.
This provides a tool to extend the comparison morphisms of Davis, Langer and
Zink between overconvergent de Rham-Witt cohomology and Monsky-Washnitzer
respectively rigid cohomology to coefficients.
