J
| jaund/o | yellow |
| jejun/o | jejunum (second part of small intestine) |
K
| kal/i | potassium (an electrolyte) |
| kary/o | nucleus |
| kerat/o | horny tissue; hard; cornea |
| kern/o | kernel (nucleus) |
| ket/o | ketone bodies (acids and acetones) |
| keton/o | ketone bodies (acids and acetones) |
| kinesi/o | movement |
| -kinesia | movement |
| kinet/o | movement |
| klept/o | to steal |
| kyph/o | humpback |
