[nether], nor, [34/25]

[nex], next, [19/9]

[noȝt], nought, [5/7] First used in [4/8]

[note], not, [30/5]

[oo], one, [42/20]; o, [42/21] First used in [34/27] (oo); [33/22] (o)

[omest], uppermost, higher, [35/26];

omyst, [35/28]

[omwhile], sometimes, [45/31] First used in [39/17]

[on], one, [8/29]

[opyne], plain, [47/8]