Webster's Revised Unabridged Dictionary · 1913

Phrenetic

Phrenetic , adjective

[Latin phreneticus, Greek frenhtiko`s, frenitiko`s: compare French phrénétique. See Frantic, and compare Frenetic.]

Relating to phrenitis; suffering from frenzy; delirious; mad; frantic; frenetic.

Also: Phrenetical

Phrenetic , noun

One who is phrenetic. — Harvey