English
tectosilicate
From tecto- + silicate.
Proto-Indo-European *(s)teg- ‘to cover with a roof’
Proto-Italic *tegō ‘to cover’
Latin tegō ‘to cover’
Latin tēctum ‘roof’
English tecto-
Today it means
noun Any of various silicate minerals, mostly aluminosilicates, with a three-dimensional framework of silicate tetrahedra with SiO₂ or a 1:2 ratio, making up the greater part of Earth's crust.
Language periods are conventional ranges, not dates for this word.
Etymograph / tectosilicate