Ferderer rhymes with:
murderer, ederer, embroiderer, federer, hinderer, launderer, lederer, murderer, niederer, pfleiderer, riederer, rinderer, roederer, scheiderer, schwaderer, slanderer, wanderer
Ferderer sounds like:
fairweather, farther, ferriter, fortier, forwarder, frater, fretter, frieder, fritter, froder, further