What is the meaning of -id?

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.

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

Forming common names of meteors from their apparent constellation of origin.

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

Forming names of dental features found in lower (mandibular) teeth.

Forming the names of certain dynasties, being suffixed to the name of their progenitors and meaning "descendant(s) of".

your ... -s (second-person singular informal, multiple possessions)

-ide (indicating a binary compound)

Agent suffix

The ending of the accusative and genitive plural.

A suffix denoting the third-person singular to first-person singular conjunct form of a transitive animate verb (vta)

Forms a noun of agency.

-ide

used to form the informal second-person plural imperative mood of -ir verbs

Forms an ordinal number (adjective) from a cardinal number.

forming abstract nouns, -ness, -ment

verb suffix for the impersonal imperfect/conditional

Source: wiktionary.org