Thanks AJT. Actually I was just checking it out on the Quick Solve, which I never used before. I think I got the answer, though yours is quite ingenious. Want me to say?
Well - a word one uses every day!.. I've just tried to find it in Chambers, and it's not there - other derivatives, but not that. It's the starch that would make it gluey - remember flour and water paste at school?