Sesquipedalianism & Lethologica

'Sesquipedalianist' is my favourite word. It's my favorite word because it's the only word I know in existence that causes you to literally become its meaning upon its use.

Sesquipedalianism is defined as: The practice of using long, sometimes obscure, words in speech or writing (particularly to distinguish oneself in conversation).

What's interesting about this is that the word itself is long and somewhat obscure, meaning that the instant you use the word 'sesquipedalianist', you become one. I am yet to find another word in the English language that can replicate this effect.

There are some words that come close, such as 'ineffable' (too great or extreme to be expressed or described in words), whereby ironically the word describes something indescribable. However it does not cause the user to become ineffable upon its use. There are also words that reflect what one might already be (such as a short Englishman saying the words 'short Englishman'), but again, the meaning is not activated upon its use.

There are, however, words that have the inverse effect. An example of this could be the word 'Hippopotomonstrosesquippedaliophobia' (fear of long words), which ironically would cause fear in those who suffer from the condition when communicating it. This only works when the user suffers from the condition however, so would include only a minority of people and not be a general rule.

'Lethologica' on the other hand can cause a truly opposite effect. It's defined as 'The inability to remember a particular word or name', therefore by forgetting the word its meaning is inflicted unto you. Upon not using the word, because you can't remember it, you suffer from it.

This means that there is at least one word in the English language that you can use, that causes you to inherit its definition. Just as there is at least one word that will cause the same effect by not using it.