λίστρον
From LSJ
τὸ γὰρ μυστήριον ἤδη ἐνεργεῖται τῆς ἀνομίας· μόνον ὁ κατέχων ἄρτι ἕως ἐκ μέσου γένηται. (2Thess 2:7) → For the mystery of lawlessness is already at work — just at work until the one who is now constraining it is taken out.
English (LSJ)
τό,
A tool for levelling or smoothing, spade, shovel, Od.22.455, Lyc. 1348, Mosch.4.101:—later also λίστρ-ος, ὁ, Sch.Nic.Th.29, EM587.43.