C16: from French sciatique, from Late Latin sciaticus, from Latin ischiadicus relating to pain in the hip, from Greek iskhiadikos, from iskhia hip joint
sciatic in American English
(saɪˈætɪk)
adjective
of, in the region of, or affecting the hip or its nerves
Word origin
MFr sciatique < ML sciaticus, altered < L ischiadicus < Gr ischiadikos < ischion, the ischium