Here's a list of synonyms for join (courtesy of m-w.com):
associate, bracket, coadunate, coagment, coalesce, combine, compound,
concrete, conjoin, conjugate, connect, couple, link, marry, one, relate,
unite, wed, yoke
and for split:
carve, cleave, dissect, dissever, sever, slice, sunder, cleave, rend, rip,
rive
Personally I think having "marry" and "divorce" would be nice ;-)
andrew
(and when this debate is finished we can get back to emacs vs. vi)