τεκμήριον
Alt. τεκμήριον, ου, τό,
Etym. τεκμαίρομαι
I. like τέκμαρ II, "a sure signs. or token", Hdt., attic
II. "a positive proof", Aesch., Plat., etc.:—in attic Prose τεκμήριον δέ as an independent clause, "now the proof of it is this" (which follows), Thuc., etc.