1. A surname of Zeus, which was derived either from Mount Laphystius in Boeotia, or from the verb laphussein, to flee, so that it would be synonymous with phuxios: a third opinion is, that it signified "the voracious," in reference to the human sacrifices which were offered to him in early time. (Paus. i. 24. § 2, ix. 34. § 4.)

2. A surname of Dionysus, from the Boeotian mountain Laphystius, whence the female Bacchantes were called, in the Macedonian dialect, Laphystiae. (Tzetz. ad Lycoph. 1236; Miiller, Orchom. p. 168, 2d edit.)