στρωτήρ
From LSJ
τὸ ἓν καὶ τὸ ὂν πολλαχῶς λέγεται → the term being and the term one are used in many ways, one and being have various meanings, one and being have many senses
English (LSJ)
ῆρος, ὁ,
A rafter laid upon the bearing beam; mostly in pl., Ar.Fr.72; of a drunken man, ὅταν μὴ δύνηταί τις τοὺς στρωτῆρας ἢ τὰς δοκοὺς ἀριθμεῖν Thphr.Vert.12, cf. IG22.1672.63, al., 42(1).102.179,235 (Epid., iv B.C.), Ph.Bel.87.25, Plb.5.89.6, IG12(3).324.11 (Thera, ii A.D.): generally, cross-beam, Hp.Art.7,78; expld. by σανίδες εἰς ὀροφὴν ἐπιτήδειοι, AB302; opp. δοκοί, Str.16.4.13; difft. from δοκοί and ἀπότομα, BGU1546.8 (iii B.C.).