- \\əˌdē\ noun plural suffix
Etymology: New Latin, from Latin (plural of -ides, masculine patronymic suffix), from Greek -idai, plural of -idēs, masculine patronymic suffix: members of the family of — in patronymic group names
Seleucidae— in names of families of animals substituted for the last syllable of the genitive case of the name of the type genus
Aphididae from Aphis
Equidae from Equus
* * *Zool.a suffix of the names of families: Canidae.[ < NL, L < Gk -idai, pl. of -IDES offspring of; akin to -ID1]
* * *-idae /-i-dē/n sfxUsed in names of zoological families, as in Boridae, CanidaeORIGIN: L, from Gr -idai, pl of -idēs
Useful english dictionary. 2012.