-idae

\\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

Alcmaeonidae

Homeridae

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

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Zool.

a suffix of the names of families: Canidae.

[ < NL, L < Gk -idai, pl. of -IDES offspring of; akin to -ID¹]

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-idae /-i-dē/

n sfx

Used in names of zoological families, as in Boridae, Canidae

ORIGIN: L, from Gr -idai, pl of -idēs