Definition of -ics in English:

-ics

suffix

  • (forming nouns) denoting arts or sciences, branches of study, or profession.

    ‘classics’
    ‘politics’

Usage

A noun ending in -ics meaning ‘a subject of study or branch of knowledge’ will usually take a singular rather than a plural verb: politics is a blood sportclassics is hardly studied at all these days. However, the same word may take a plural verb in cases where the sense is plural: many of the classics were once regarded with disdain

Origin

From French -iques, Latin -ica, or Greek -ika, plural forms.

Pronunciation:

-ics

/ɪks/