n0t_u wrote:The difference would be the ink is a little stronger than the wash. With the matte varnish it would look roughly the same but the effect would be "deeper". Glazing is somewhat similar yet a bit different as well. Glazing is more of putting the wash/ink/watered paint on the surface as a whole, for example a blue ink/wash on silver to give a metallic blue rather than say applying a turquoise one in the recesses of bronze to create verdigris effect. They're very similar and in fact both could probably be considered a glaze, sort of how the NMM technique is more of a mix of blending and feathering.
The name likely just stuck with it to simplify the explanation.
Like n0t_u said, the main difference is, that the inks are stronger that the washes. They both have the same consistency, but the inks contain much more pigment than washes. Therefore inks should be applied much more sparingly than washes.
Cheers,
IK-Painter