Pronunciation: [ˈadə͡lhˌɛd] (IPA) 
The word "addlehead" is spelled with the IPA phonetic transcription /ˈædəlˌhɛd/. It is a compound word that combines "addle," meaning confused or muddled, with "head," referring to the brain. Together, "addlehead" describes a person who is not very intelligent or who has a confused mind. This term is not commonly used in contemporary language, and the spelling may be unfamiliar to many people due to its outdated nature.
The word "addlehead" is composed of two parts: "addle" and "head".
The term "addle" is derived from the Old English word "adela", meaning "liquid filth" or "mire". Over time, it evolved to refer to spoiled or rotten substances, and eventually came to mean "confusion" or "mental confusion".
The term "head" comes from the Old English word "heafod", which simply means "head" or "brain".
When combined, "addlehead" refers to a person who is confused, muddled, or lacks intelligence. It is often used to describe someone who is perceived as foolish or slow-witted.
