THE FULL ARTICLE — from the International Standard Bible Encyclopedia

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

(katecho): Usually in the sense of "permit" (Anglo-Saxon, leetan), but also in Old English with meaning of "hinder" (Anglo-Saxon, lettan). This latter sense is found in 2Th 2:7 the King James Version, "Only he who now letteth will let," where the Revised Version (British and American) has, "Only there is one that restraineth now."