Grundvallarþátta
Grundvallarþátta is an Icelandic term that translates to "fundamental components" or "basic elements." It is often used in a philosophical and scientific context to refer to the irreducible constituents or foundational principles of a system, phenomenon, or concept. The idea behind grundvallarþátta is that by understanding these basic building blocks, one can gain a deeper comprehension of the whole.
In physics, for example, the grundvallarþátta of matter are considered to be elementary particles such as quarks