Ge-mearcan

According to the Old English Dictionary:

to -mearcenne;

ge-mearcan

p. ede; pp. ed To mark, observe, keep; observāre :-- Getácna me ðǽr sélast sý sáwle mínre to gemearcenne Meotudes willan signify to me where it be best for my soul to observe the Creator's will, Exon. 118 a; Th. 453, 7; Hy. 4, 11. ge-mearcan