Here's what rhymes with iffthe.
fifth Words that almost rhyme with iffthe
ifs riffs whiffs gives lives myths cliffs sieves scythes skiffs sniffs writhes smiths forgives hieroglyphs monoliths blacksmiths goldsmiths silversmiths myth width filth pith scythe writhed writhe sixth smith plinth labyrinth therewith wherewith herewith hyacinth forthwith monolith silversmith