Actually it's in a lot of words:

geriatric, psychiatric, pediatric.

I do a lot of crossword puzzles, and I have noticed over the years that relatively rare words seem to pop up in cycles. Five years ago you would never have seen iatro or iatric in a crossword puzzle, not even the dreaded Sunday NY Times. Today I run across it at least once a week. I have to assume that there's a loose fellowship of builders who watch each others work to learn and borrow.


TEd