grunneiginleika
Grunneiginleiki is an Icelandic term that translates roughly to “fundamental principle” or “basic property.” It refers to a core idea, rule, or characteristic that underpins a theory, system, or practice and is widely regarded as essential rather than optional. In philosophy, law, science, and public policy, grunneiginleiki are invoked to identify the non-negotiable elements that define a concept or framework and distinguish it from mere features or superficial aspects.
Etymology: grunn- from grunnur meaning base or foundation, and eiginleiki meaning property or attribute. The form
Usage: In academic writing, grunneiginleiki are enumerated as the essential principles that a theory must satisfy.