ἐπιρρακτός
From LSJ
εἰργάζοντο λογάδην φέροντες λίθους καὶ ξυνετίθεσαν ὡς ἕκαστόν τι ξυμβαίνοι → they went to work bringing the stones as they picked them out and put them together as each one happened to fit
English (LSJ)
ή, όν,
A dashed on or down, θύρα ἐπιρρακτή trap-door, Plu.2.781e; ποτόν forced down the throat, ib.699d.