53. So also fingr (finger), gen. fingrar, pl. fingr; vetr (winter), pl. vetr. maðr (man) is irregular: maðr, mann, manni, manns; męnn, męnn, mǫnnum, manna.

SingularPlural
Nom.faðir (father)fęðr
Acc.fǫðurfęðr
Dat.fǫðurfęðrum
Gen.fǫðurfęðra

54. So also brōðir (brother), pl. brœðr.

55. Pres. participles used as nouns follow this decl. in the pl., following the weak class in the sg.:

SingularPlural
Nom.bōndi (yeoman)bœndr
Acc.bōndabœndr
Dat.bōndabōndum
Gen.bōndabōnda

56. So also frœndi (kinsman), pl. frœndr.

Strong Neuters

SingularPlural
Nom.skip (ship)skip
Acc.skipskip
Dat.skip-iskip-um
Gen.skip-sskip-a

57. So also orð (word), land (land) pl. lǫnd, sumar (summer) pl. sumur (§ 25).

58. męn (necklace), kyn (race), grey (dog) insert j before a and u: greyjum. hǫgg (stroke) inserts v before a vowel: hǫggvi. knē (knee), knē, knē, knēs; knē, knē, kjām, knjā. So also trē (tree).