  We study the Einstein-aether theory in Weyl integrable geometry. The scalar
field which defines the Weyl affine connection is introduced in the
gravitational field equation. We end up with an Einstein-aether scalar field
model where the interaction between the scalar field and the aether field has a
geometric origin. The scalar field plays a significant role in the evolution of
the gravitational field equations. We focus our study on the case of
homogeneous and isotropic background spacetimes and study their dynamical
evolution for various cosmological models.
