-id

//ɪd// suffix

suffix ·Uncommon ·Advanced level

Definitions

Suffix
  1. 1
    Forming the names of dynasts, being suffixed to the name of their progenitors and meaning “descendant of”. morpheme

    "Perseus + -id → Perseid (dynast)"

  2. 2
    Forming names of feminine equivalents or of feminine descendants from a masculine name. morpheme

    "Titan + -id → Titanid, literally “female Titan”"

  3. 3
    of or pertaining to; appended to various foreign words to make an English adjective or noun form. Often added to words of Greek, sometimes Latin, origin. morpheme

    "arachno- + -id → arachnid"

  4. 4
    Forming the common names of members of a taxon which has a name ending in -idae. morpheme

    "A felid is a member of Felidae."

  5. 5
    Forming the names of epic poems. morpheme

    "Aeneas + -id → Aeneid"

Show 3 more definitions
  1. 6
    Forming the names of cusps of lower (mandibular) teeth. morpheme

    "protocone (“cusp of upper molars”) + -id → protoconid (“equivalent for lower molars”)"

  2. 7
    Forming common names of meteors from their apparent constellation of origin. morpheme

    "Perseus + -id → Perseid (meteor)"

  3. 8
    Forming nouns from Latin or Greek roots, including certain plant names modelled on Latin sources. morpheme

Example

More examples

"Perseus + -id → Perseid (dynast)"

Etymology

Etymology 1

Borrowed from Middle French -ide m, from Latin -idēs m (patronymic suffix; plural: -idae), from Ancient Greek -ίδης m (-ídēs, patronymic suffix; plural: -ίδαι (-ídai)).

Etymology 2

Borrowed from Middle French -ide f, from Latin -is f (genitive: -idis; plural: -ides), from Ancient Greek -ῐς f (-ĭs) (genitive: -ῐδος (-ĭdos); plural: -ῐδες (-ĭdes)).

Etymology 3

Variant of -oid.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.