Used to form adjectives from nouns with the meaning “of or pertaining to”.
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).
Added to nouns and adjectives to form adjectives meaning “having the quality of”, either “involving the referent” or “analogous to it”.
Added to verbs to form adjectives meaning "inclined to".
Used in the name of some locations which end in -ia in Latin.
Forming abstract nouns denoting a state, condition, or quality.