Ge-midlian

According to the Old English Dictionary:

ge-midlian

p. ode; pp. od [medl a bridle] To bridle, restrain :-- Gif hwá nyle gemidlian his tungan if a man will not bridle his tongue, Past. 38, 8; Swt. 281, 3; Hat. MS: 38, 1; Swt. 271, 13; Hat. MS. ge-midlian