K-Space

Land's group in the 90s adopted K, from Greek kuber (cyber).  ‘k-space’ is thus for cyberspace.   ‘keyrsla’ in Icelandic is driving or drive. 
i don't mind  ‘c-space’ either, as kuber in greek refers to navigation (as of the sea — hence c).
See: CCRUisms; K-influences (cyber-influences); Cyberspace; Cybernetics.