It wasn't my turn, so I hadn't thought about it!Anyone? (Investigate, inestimable,unestimated, it's a toughie to follow, so I'm off for a few days.)
And where do you go from there (apart from adding s/d/or)? You need to start removing letters not adding them and there's no easy way.Investigate
Probably before that, but I tried shortening it to 7 with "imitate", which there were ways out of, but nobody took them.Did I start the rot with "instigate"?
http://hummy.tv/forum/threads/add-one-letter-game.6531/come up with something.