interfuse

v. t. [ L. interfusus, p. p. of interfundere to pour between; inter between + fundere to pour. See Fuse to melt. ] [ 1913 Webster ]

1. To pour or spread between or among; to diffuse; to scatter. [ 1913 Webster ]

The ambient air, wide interfused,
Embracing round this florid earth. Milton. [ 1913 Webster ]

2. To spread through; to permeate; to pervade. [ R. ] [ 1913 Webster ]

Keats, in whom the moral seems to have so perfectly interfused the physical man, that you might almost say he could feel sorrow with his hands. Lowell. [ 1913 Webster ]

3. To mix up together; to associate. H. Spencer. [ 1913 Webster ]