[su.per.heat] vt (1859) 1: to heat (a vapor not in contact with its own liquid) so as to cause to remain free from suspended liquid droplets "~ed steam"
2: to heat (a liquid) above the boiling point without converting into vapor -- su.per.heat.er n
[2]su.per.heat n (1884): the extra heat imparted to a vapor in superheating it from a dry and saturated condition; also: the corresponding rise of temperature