Stem إِفْكِ has 2 unique word forms and appears 2 times in the Quran.

Word Translation Occurrences
إِفۡكِهِمۡ <span class='n'>their</span> <span class='n'>falsehood</span>, their falsehood 2
بِٱلۡإِفۡكِ <span class='p'>the</span> <span class='n'>lie</span>, the lie 2