From what I can tell, it looks like OE nouns could have either "strong" or "weak" declensions, and this is different from the dual form. Someone on another forum claims that "brethren" is another example.
Re:A Shocking Truth About CSS
by riffraff on Tuesday March 09, 2010 @04:16PM
(#1179407)
may well be true, my source is an old State of the Onion talk from Larry Wall, which although a linguist is probably not the most qualified in the world :)
From what I can tell, it looks like OE nouns could have either "strong" or "weak" declensions, and this is different from the dual form. Someone on another forum claims that "brethren" is another example.