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40 omitted. Thus while 51 has mi a gadwwn, mi ae kadwwn, the older  71 has in the same passage mi a gadwn, mi ay cadwn. Similarly we have vedyẟẏit in Ỻ.A. 48 but bedyẟir earlier, p. 42.

i̯ drops before ɥ and u in monosyllables and final syllables; as ɥrch i 20, Ỻ.A. 67 for *i̯ɥrch pl. of i̯wrch ‘roebuck’; udd ‘lord’ < O. W. I̯ud- (‘*warrior’); peidɥnt  90 (from peidẏaw ‘to cease’, cf. peidẏw͡ys  98); Mareduẟ  1194 for *Maredi̯uẟ, O. W. Morgetiud  xiii (≡ Morᵹeti̯üẟ), Gruffudd < O. W. Griphiud (≡ Griffi̯üẟ). It is often found written in Ml. W., as ystyrẏych 1153 ‘thou mayst consider’, hilẏynt Ỻ.A. 11 ‘they would breed’, llafvurẏus do. 28 ‘laborious’, meẟylẏut 103 ‘thou wouldst think’; but the spelling is perhaps theoretical; see below.

Initial i̯u in polysyllables has given i, as in Iddew ‘Jew’ for *i̯uẟew; Ithel < *i̯uẟ-hael, O. W. Iudhail.

w̯ sometimes drops before o; as in the prefixes go&#8209;, gor- for gw̯o&#8209;, gw̯or&#8209;; thus Ml. and Mn. W. goleuni ‘light’, O. W. guolleuni. But analogy has tended to restore it; thus while we find athraon i 256, ii 319 for athrawon Ỻ.A. 112,  19,  1234 ‘teachers’, canaon  38,  i 261, 315 for kanawon  147 ‘whelps’, lleot  ii 234, 235 for llewot Ỻ.A. 10