  In this paper we establish a connection between the onset temperature of
glassy dynamics with the change in the entropy for a wide range of model
systems.
  We identify the crossing temperature of pair and excess entropies as the
onset temperature. Below the onset temperature, the residual multiparticle
entropy(RMPE), the difference between excess and pair entropies, becomes
positive. The positive entropy can be viewed as equivalent to the larger phase
space exploration of the system. The new method of onset temperature prediction
from entropy is less ambiguous, as it does not depend on any fitting parameter
like the existing methods. Our study also reveals the connection between
fragility and the degree of breakdown of the Stokes Einstein (SE) relation.
