Artificial intelligent assistant

scia

scia Obs. rare.
  Also 5 scie. Cf. sciat.
  [med.L., app. aphetic for the pl. ischia (see ischium) taken as sing.]
  The hip.

c 1400 Lanfranc's Cirurg. ii. x. 176 Þe place of þe coniuncioun of þese boones is clepid þe scie. Ibid. 177 Þat oon veyne þerof is clepid sciatica, & þat oþere is clepid renalis, &..oon veyne serueþ for þe scie, & þat oþer for þe reynes. 1541 R. Copland Guydon's Quest. Chirurg. K iij b, The great fote lasteth fro the ioynt of the huckle called scia, vnto the ferdest parte of the toes.

Oxford English Dictionary

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