Any "standard" names for..

I have three questions:

1) Is http://forth.sourceforge.net
still in use?

2) Is there a "convention", Comus name for a word which produces the
stack effects:
    a b -- a a b
    Philip Koopman calls it "UNDER".

3) Is there a "convention", Comus name for a word which produces the
stack effects:
    a n -- a+1 n-1
    Effectively removing the first character from a addr/count string.
This is really getting confusing..!

Any feedback appreciated!

Hans