E / extentĭo
noun

extentĭo

gen. extentōnis · gender feminine · decl. 3rd
a stretching out; extension
a stretching out, extension: capitis, Theod. Prisc. 2, 1, 3; Vitr. 7, praef. § 11.—Plur., Vitr. 9, 1, 13 al.