Emily Dickinson Lexicon

IS-CHI-AD'IC, a. [L. ischiadicus, from ischias, the sciatica, from ischium, the hip; Gr. ισχιον, ισχιαδικος.]

Pertaining to the hip. The ischiadic passion or disease is ranked by Cullen with rheumatism. It is a rheumatic or neuralgic affection of some part about the hip joint. It is called also sciataca.