THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

ad'-i-tum (Latin from Greek aduton, adjective adutos, "not to be entered"): Applied to the innermost sanctuary or chambers in ancient temples, and to secret places which were open only to priests: hence, also to the Holy of Holies in the Jewish temple.

See TEMPLE.