"forepart of the head," 1570s, from Latin sinciput "half a head," also "one of the smoked cheeks of a pig," from semi- (see semi-) + caput (see capitulum. Related: Sincipital.
sinciput sin·ci·put (sĭn'sə-pət)n. pl. sin·ci·puts or sin·cip·i·ta (sĭn-sĭp'ĭ-tə)
The upper half of the cranium, especially the anterior portion above and including the forehead.