sciatica

 
Pronunciation: /sʌɪˈatɪkə/

noun

[mass noun]
  • pain affecting the back, hip, and outer side of the leg, caused by compression of a spinal nerve root in the lower back, often owing to degeneration of an intervertebral disc.

Origin:

late Middle English: from late Latin sciatica (passio) '(affliction) of sciatica', feminine of sciaticus, from Greek iskhiadikos (see sciatic)