English
suprastructural
From supra- + structural or suprastructure + -al.
Formed from supra- + structural
Proto-Indo-European *úp
…
Proto-Italic *superos ‘upper’
Proto-Italic *superād ‘above’
Old Latin suprād
Latin suprā ‘above, on the top, on the upper side’
English supra-
Today it means
adj Relating to a suprastructure
Language periods are conventional ranges, not dates for this word.
Etymograph / suprastructural