While typesetting a German text, my typesetting program did something strange: my typed
[lots of text] Rechnernetze und -verbunde
was typeset as
[lots of text] Rechnernetze und -
verbunde
The reason for such a typesetting is that the end of the line has been reached right after the hyphen "-". My question is whether this typesetting is correct from the viewpoint of the German language or whether I have to force my word processor to something else. If we do something else, would hyphenating "-verbunde" at other positions be correct, such as in
[lots of text] Rechnernetze und -verbun-
de
or in
[lots of text] Rechnernetze und -ver-
bunde
?