Hi there I'm just wondering if "essiment" is a word, i think it's derived from the word pessimism but i can't find pessiment anywhere so can someone give me a definition of this word.
Yep, Zoph and goumas are correct. A far-reaching search of the internet has verified that "essiment" is not a word. It is a common misspelling of "essimist", probably because many people spell by pronunciation and mispronounce "essimist".
I think this sufficiently answers the question. If not let me know on my profile and I'll re-open this for discussion, but I don't see any point in leaving this open for everyone and their brother to repeat what's already been said.