- down, downward: catabolism
- away, completely: catalysis
- against: catapult
- throughout: cataphoresis
- backward: cataplasia
Also, before a vowel, cat-
Origin of cata-Classical Greek kata- from kata, down
- Down: catadromous.
- Reverse; backward; degenerative: cataplasia.
Origin of cata-Greek kata- from kata down, downwards, thoroughly ; see kat- in Indo-European roots.
From Ancient Greek κατά (kata, “downwards”).