Strong’s Greek
G508 — anogeon
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀνάγαιον
anogeon — pronounced an-ogue'-eh-on
from 507 and 1093; above the ground, i.e. (properly) the second floor of a building; used for a dome or a balcony on the upper story:--upper room. see GREEK for 507 see GREEK for 1093
2 occurrences in the KJV.
Mark 14:15
And he will shew you a large upper room furnished and prepared: there make ready for us.
Luke 22:12
And he shall shew you a large upper room furnished: there make ready.