Strong's:στέγη a roofDerivation: strengthened from a primary τέγος (a "thatch" or "deck" of a building);KJV Usage: roof.
TBESG:στέγηroofG:N-F στέγη, -ης, ἡ (< στέγω) [in LXX: Gen.8:13 (מְכַסֶּה), etc. ;] a roof: Mrk.2:4; of entering a house, εἰσέρχεσθαι ὑπὸ τὴν σ., Refs Mat.8:8, Luk.7:6 (cf. MM, xxiii).† (AS)
στέγη stegē steg'-ay Strengthened from a primary word τέγος tegos (a “thatch” or “deck” of building); a roofKJV Usage: roof.
ἀποστεγάζω apostegazō ap-os-teg-ad'-zo From G575 and a derivative of G4721; to unroofKJV Usage: uncover.
στέγω stegō steg'-o From G4721; to roof over, that is, (figuratively) to cover with silence (endure patiently)KJV Usage: (for-) bear, suffer.
τρίστεγον tristegon tris'-teg-on Neuter of a compound of G5140 and G4721 as noun; a third roof (story)KJV Usage: third loft.