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108 (wrongly wr. guipno) v, Mn. W. Gwyddno; Mochno 61, Beuno Ỻ.A. 119, Mn. W. Tudno, Machno, etc., all < *‑gnāu̯i̯ó‑s: Lat. Gnaeus < *gnā-u̯i̯os < *g̑n̥̄‑, √g̑enē- ‘be born’. (With the accent on the ā́ it gave ‑nwy by (3), as Mochnwy 47, Gronwy § 78 i (2), weakened to ‑neu, see (4), as Guitneu  98, 106, Iudnou  73, 77, etc.);—W. clo ‘lock’ < *qlāu̯-ís: Gk. κληίς, Lat. clāvis, √(s)qlāu̯‑;—W. noe ‘large bowl’ < *nāu̯i̯ā́: Lat. nāvia, nāvis, Gk. ναῦς, Ion. νηῦς, Skr. nā́uḥ;—W. athro ‘guardian, teacher’, < *altrāu̯ī́ < *altrāu̯ṓ < *altro-au̯ṓ, § 155 ii (1): *au̯on- iv (1); pl. athrawon, alltrawon < *altrāu̯ónes; f. elltrewyn ‘stepmother’ < *altrāu̯ónī; Bret. aoutrou ‘seigneur’, Corn. altrou ‘fosterfather’.

(1) ug before a vowel > uu̯ in Brit. and developed like