Attic

Of or pertaining to Attica, in Greece, or to Athens, its principal city; marked by such qualities as were characteristic of the Athenians; classical; refined.

A low story above the main order or orders of a facade, in the classical styles; -- a term introduced in the 17th century. Hence:

A room or rooms behind that part of the exterior; all the rooms immediately below the roof.

An Athenian; an Athenian author.

floor consisting of open space at the top of a house just below roof; often used for storage

the dialect of Ancient Greek spoken and written in Attica and Athens and Ionia

(architecture) a low wall at the top of the entablature; hides the roof