IPA: //ˌspɒn.dɪˈlaɪ.tɪs//
KK: /ˌspɒndɪˈlaɪtɪs/
A condition characterized by inflammation of the vertebrae in the spine, which can cause pain and stiffness.
The doctor diagnosed her with spondylitis after she complained of back pain.
Spondylitis is formed from "spondylos" (σπονδύλος) (meaning vertebra) and "itis" (from Greek "itis" meaning inflammation). The word refers to the inflammation of the vertebrae.
Think of 'spondylos' which means vertebra, and 'itis' which indicates inflammation — this helps you remember that spondylitis is the inflammation of the vertebrae.