Goal: build all four medical terms from their Greek and Latin root pieces.

How: tap a clue to select it, then tap root tiles in the right order to spell the term it describes. The tiles take that clue's colour; tap a placed tile (or press Clear) to undo.

Some tiles are decoys that fit no answer. A wrong full group costs one of your four mistakes.

Solve all four to see what every root means — that's how the vocabulary is built. New puzzle daily.