-ic

Meaning

  1. (morpheme) Used to form adjectives from nouns with the meaning “of or pertaining to”.
  2. (morpheme) Used to denote certain chemical compounds in which a specified chemical element has a higher oxidation number than in the equivalent compound whose name ends in the suffix -ous. For example sulphuric acid (H₂SO₄) has more oxygen atoms per molecule than sulphurous acid (H₂SO₃).

Pronounced as (IPA)
/ɪk/
Etymology

In summary

From Middle English -ik, from Old French -ique, from Latin -icus, from Proto-Indo-European *-kos, *-ḱos, formed with the i-stem suffix *-i- and the adjectival suffix *-kos, *-ḱos. Compare Ancient Greek -ικός (-ikós), Sanskrit -इक (-ika) and Old Church Slavonic -ъкъ (-ŭkŭ). Doublet of -y; compare also -ac. Proto-Indo-European *-kos on noun stems carried the meaning 'characteristic of, like, typical, pertaining to', and on adjectival stems it acted emphatically.

Notes

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