undirstöður
Undirstöður is the plural of undirstaða, meaning foundations or bases in Icelandic. The term is used for both tangible bases that support structures and for abstract bases that support systems or ideas. It is formed from undi- meaning “under” and staða meaning “place” or “standing.”
In architecture and construction, undirstöður refer to the structural foundations of a building or other construction.
In a figurative sense, undirstöður denotes the underlying principles or components of a theory, policy, or organization.
Related terms include grunnur (base or basis), undirstaða (singular), and stoð (support). The nuances depend on