The spelling of "most dementedly" can be confusing due to the pronunciation of the word "demented." In IPA phonetic transcription, it is pronounced as /dɪˈmɛntɪd/. The -ed at the end suggests a past participle or adjective form, which may lead one to spell it as "dementedly," dropping the -t. However, "dementedly" is the correct adverb form, adding -ly to the end of "demented" while retaining the -t to maintain the correct pronunciation of the word.
The word "most dementedly" is a phrase consisting of the adverb "most" and the adjective "demented". Let's look at the etymology of each of these words:
1. Most: The word "most" comes from Middle English "moste", which is derived from Old English "māst" or "mǣst". The Old English term ultimately traces back to the Proto-Germanic word "*maistaz" meaning "most".
2. Demented: The word "demented" originates from the Latin word "dēmentis", which literally means "out of one's mind". It is formed from the prefix "de-" indicating negation or reversal, and "mens" meaning "mind". Over time, the term "demented" came to mean insane or mentally deranged.