to let, hinder, check, prevent:
1.c. acc. et inf. to hinder or prevent one from doing, Hdt., Soph., etc.; with a negative added, κ. τινὰ μὴ θανεῖν Eur., etc.:—Pass. to be hindered, τοῦ ὕδατος πιεῖν from drinking of the water, Plat.; κωλυόμεσθα μὴ μαθεῖν Eur.; rarely with part., μὴ κωλύωνται περαιούμενοι Thuc.