[yissp]

What about ox -> oxen?

[seanhunter]

Interesting. Yes that's similer, although I was talking about "ren" as a suffice specifically.

But still we say ox and oxen and yet we don't say one axe many "axen". Yes I know people say "emacsen", but that's not really a word.

[euroderf]

Not to mention VAX -> VAXen.