IPA: /məˈnaɪ.kli/
KK: /məˈnaɪkli/
In a way that shows extreme enthusiasm or excitement, often to the point of being crazy or uncontrolled.
He laughed maniacally as he ran around the room.
Maniacally → It is formed from "maniac" (from Greek "maniakos", meaning mad or frenzied) and the suffix "-ally" (meaning in a manner of). The word "maniacally" describes behaving in a mad or frenzied manner.
Think of someone acting in a 'mad' way ('maniac') and doing it 'in a manner of' ('-ally'). This helps you remember that 'maniacally' means to act in a frenzied way.