The word(s) "diminished" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) Therefore be not in doubt as to what these worship; they do not worship but as their fathers worshipped before; and most surely We will pay them back in full their portion undiminished.

(2) And Allah created you of dust, then of the life-germ, then He made you pairs; and no female bears, nor does she bring forth, except with His knowledge; and no one whose life is lengthened has his life lengthened, nor is aught diminished of one's life, but it is all in a book; surely this is easy to Allah.