Clemman

According to the Old English Dictionary:

clemman

p. de To press, pinch:--Clæm þú þíne handa tógædere, Tech. ii. 122, 21. Clæm þú þíne wynstran hand þám gemete þe þú óstran on handa hæbbe shut your left hand as if there were an oyster in it, 124, 12, 20. [N. E. D. clem.] v. next word. clemman