English
exostructure
From exo- + structure.
Proto-Indo-European *h₁eǵʰs ‘out of’
Proto-Hellenic *eks
Ancient Greek ἐκ ‘Out of, from’
Ancient Greek ἔξω ‘outer’
English exo-
Proto-Indo-European *strew- ‘to strew, spread out’
Proto-Italic *strowō
Latin struō ‘to pile up; to build’
Latin structūra ‘a fitting together, building’
Middle French structure
English structure
Today it means
noun external structure
Language periods are conventional ranges, not dates for this word.
Etymograph / exostructure