Copy first word of line

Usually I find the answers to my beginner-script-problems here in this forum but this time I had no luck so far...

I want to modify a Japanese vocabulary file to import it into granule. Every line looks like this:

I would like to have it like this:

The lenght of the words always differ, but there is a bracket "(" in every line, so the part before the bracket should be copied and inserted with a trailing ";" at the beginning of the same line again.

How could this be done?

Thanks for any help!

If "word" in your example never has space characters or your locale's equivalent of spaces) in it:

awk '{ printf ("%s%s %s\n", $1, ";", $0); } ' inputfile > outputfile

It works!

Thanks a lot!!!