Ordure, filth, [29/716]
Ostelmentȝ, furniture, goods, [48/1266]
Oþerweyes, otherwise (aliter), [164/4772]
Outerage, excess, [50/1326]
Outerest, extremest, remotest, [55/1469], [89/2476]
Outerly, utterly, [108/3081]
Outraien, do harm (?), [78/2162]
Over-comere, conqueror, [8/109]
Overmaste, highest, uppermost, [6/57]
Overmyche, overmuch, very much, [79/2191]