-iidae Morpheme -iidae Type suffix Denotation taxonomic suffix naming a family corresponding to -ium, -ias, and -is nouns Etymology suffixal construction from -ium, -ias + -idae Evidence Icteriidae, Phalangiidae, Plagiorchiidae, Pomatiidae See Also -ium, -ias, -is, -idae Share on FacebookTweetSave