Actually the previous mnemonic is better...ennui sounds like YEH NAHEEEE!!!!
ennui...when pronounced sounds quite similar to ANNOYed....now think of a person who is always annoyed with everything......such a person could be very BORING and irritating for you.
ennui=en(anything)+nui(new) which can be said as 'anything new?? I am filled with "boredom" with the same old stuff'
its sounds/written like "nini aayi" which means feeling sleeping in Hindi. You feel sleepy when u r bored.
sounds like "on we" so, 'on we go to find something to do'
ennui sound like a new ... .i.e i got bore by the old one
sound like anew so when we get bore we want new
ennui= en (enable) + nui (new); Due to fade up from past.
e(ayee)nnui(nahi)if someone is boared then he exclaimed aee nahi an