<span class="searchmatch">diffūsīvam</span> accusative feminine singular of diffūsīvus...
dative diffūsīvō diffūsīvae diffūsīvō diffūsīvīs accusative diffūsīvum <span class="searchmatch">diffūsīvam</span> diffūsīvum diffūsīvōs diffūsīvās diffūsīva ablative diffūsīvō diffūsīvā...