Etymology
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sciatica (n.)

"disease characterized by pain in the sciatic nerve," c. 1400, from Medieval Latin sciatica, in sciatica passio "sciatic disease," fem. of sciaticus "sciatic," a corruption of Latin ischiadicus "of pain in the hip," from Greek iskhiadikos, from iskhias (genitive iskhiados) "pain in the hips," from iskhion "hip joint, socket in which the thigh-bone turns." Compare euiskhios "with beautiful hips" (Hellenistic poetry). Related: Sciatical.

updated on February 12, 2022

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Definitions of sciatica from WordNet

sciatica (n.)
neuralgia along the sciatic nerve;
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.