Mgbe ahụ, abụọ ọzọ editọ e kwalitere si nnyemaaka ọrụ onwe ha ọrụ, na-aga n'ihu na-enweghị ọtụtụ nsogbu. William Craigie malitere na 1901 na bụ maka N, Q <unk> R, Si <unk> Sq, U <unk> V, na Wo <unk> Wy. The OUP ama chere na obere London dị anya nke ukwuu site na Oxford ma, mgbe 1925, Craigie rụrụ ọrụ na akwụkwọ ọkọwa okwu na Chicago, ebe ọ bụ prọfesọ. Nke anọ nchịkọta akụkọ bụ Charles Talbutons, onye chịkọtara fọdụrụ okwu malite na A <unk> D, H <unk> K, O <unk> P, na T, fọrọ nke nta ọkara nke ọkara okokụre akwụkwọ ọkọwa okwu; Bradley nwụrụ na 1923, ka dechara E <unk> G, L <unk> M, S <unk> Sh, St, na W <unk> We.
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