

...and they're finally busted.
Welcome. Surely, this is not a Machiavellian site...
To use Malay words to describe emotion and feelings, one must follow these grammatical rules:
However, I was taught that the word 'merindui' is wrong. The correct form is 'merindukan.' You can’t find the word 'merindui' in Kamus Dewan Edisi Ketiga but I was told that the word is included in Kamus Dewan Edisi Keempat, page 1332.
I still believe that the correct form is ‘merindukan.’
A Malay linguist told me that Kamus Dewan is not an ultimate guide for Malay grammar. The only guide you can rely upon is Tatabahasa Dewan.