25 words that haven't changed since before the Ice Age: http://tinyurl.com/d63kwxl

25 "ultraconserved" words that have persisted across languages and millennia, almost unchanged:

"Thou, I, not, that, we, to give, who, this, what, man/male, ye, old, mother, to hear, hand, fire ,to pull, black, to flow, bark, ashes, to spit, worm."

Story, audio clips, more: http://www.washingtonpost.com/wp-srv/special/national/words-that-last/