Let

To hinder or obstruct.

Now I would not have you ignorant, brethren, that oftentimes I purposed to come unto you, (but was LET hitherto,) that I might have some fruit among you also, even as among other Gentiles. ( Romans 1:13 )

LET

(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 2 Thessalonians 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."