non pars substantiae sive fundi, sed accidens (non parz s<<schwa>>b-stan-shee-ee sI-vee f<<schwa>>n-dI, sed ak-si-denz). [Law Latin] Scots law. Not a part of the substance or the land, but an accident. • The phrase appeared in reference to servitudes, among other things.

[Blacks Law 8th]