-ic
/ɪk/suffix
1Forming adjectives such as Islamic, terrific.
2Forming nouns such as lyric, mechanic.
3Denoting a particular form or instance of a noun ending in -ics: aesthetic dietetic tactic
4 Chemistry Denoting an element in a higher valency: ferric sulphuric Compare with -ous.
Origin
From French -ique, Latin -icus, or Greek -ikos.