A.front-door, door-way, esp. of the entrance to the “αὐλή, ἐκ δ᾽ ἔλασε προθύροιο καὶ αἰθούσης” Il.24.323, cf. Od.3.493: pl., “στῆ δ᾽ . . ἐπὶ προθύροις Ὀδυσῆος, οὐδοῦ ἐπ᾽ αὐλείου” 1.103; “πρόθυρα δωμάτων” A.Ch.966 (lyr.), cf. E.Tr.194(lyr.); of the entrance to the μέγαρον, Od.18.10, 101, 386, 21.299.
3. space before a door, whether or not it is a porch or portico: before the outmost entrance, pl., Od.4.20, 10.220, Hdt.3.140, 6.35; sg., Pl. Prt.314c, Smp.175a: “Ἑρμαῖ . . λίθινοι . . ἐν ἰδίοις προθύροις” Th.6.27, cf. Pi.P.3.78 (sg.), Ar.V.802 (pl.), 875 (sg.), Call.Epigr.26(sg.): before the entrance to the μέγαρον, Od.20.355 (sg.); before the entrance of a νεωκόριον, IG22.1672.208.