This word is used in Psalms 84:10 (RSV marg., "stand at the threshold of," etc.), but there it signifies properly "sitting at the threshold in the house of God." The psalmist means that he would rather stand at the door of God's house and merely look in, than dwell in houses where iniquity prevailed.
M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition,
published by Thomas Nelson, 1897. Public Domain, copy freely.
Bibliography InformationEaston, Matthew George. "Entry for Door-keeper". "Easton's Bible Dictionary".